Given the Number 53,209,728, Calculate (Find) All the Factors (All the Divisors) of the Number 53,209,728 (the Proper, the Improper and the Prime Factors)

All the factors (divisors) of the number 53,209,728

1. Carry out the prime factorization of the number 53,209,728:

The prime factorization of a number: finding the prime numbers that multiply together to make that number.


53,209,728 = 27 × 32 × 11 × 13 × 17 × 19
53,209,728 is not a prime number but a composite one.


* Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
* Composite number: a natural number that has at least one other factor than 1 and itself.


2. Multiply the prime factors of the number 53,209,728

Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.


Also consider the exponents of these prime factors.

Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.


All the factors (divisors) are listed below - in ascending order

The list of factors (divisors):

neither prime nor composite = 1
prime factor = 2
prime factor = 3
22 = 4
2 × 3 = 6
23 = 8
32 = 9
prime factor = 11
22 × 3 = 12
prime factor = 13
24 = 16
prime factor = 17
2 × 32 = 18
prime factor = 19
2 × 11 = 22
23 × 3 = 24
2 × 13 = 26
25 = 32
3 × 11 = 33
2 × 17 = 34
22 × 32 = 36
2 × 19 = 38
3 × 13 = 39
22 × 11 = 44
24 × 3 = 48
3 × 17 = 51
22 × 13 = 52
3 × 19 = 57
26 = 64
2 × 3 × 11 = 66
22 × 17 = 68
23 × 32 = 72
22 × 19 = 76
2 × 3 × 13 = 78
23 × 11 = 88
25 × 3 = 96
32 × 11 = 99
2 × 3 × 17 = 102
23 × 13 = 104
2 × 3 × 19 = 114
32 × 13 = 117
27 = 128
22 × 3 × 11 = 132
23 × 17 = 136
11 × 13 = 143
24 × 32 = 144
23 × 19 = 152
32 × 17 = 153
22 × 3 × 13 = 156
32 × 19 = 171
24 × 11 = 176
11 × 17 = 187
26 × 3 = 192
2 × 32 × 11 = 198
22 × 3 × 17 = 204
24 × 13 = 208
11 × 19 = 209
13 × 17 = 221
22 × 3 × 19 = 228
2 × 32 × 13 = 234
13 × 19 = 247
23 × 3 × 11 = 264
24 × 17 = 272
2 × 11 × 13 = 286
25 × 32 = 288
24 × 19 = 304
2 × 32 × 17 = 306
23 × 3 × 13 = 312
17 × 19 = 323
2 × 32 × 19 = 342
25 × 11 = 352
2 × 11 × 17 = 374
27 × 3 = 384
22 × 32 × 11 = 396
23 × 3 × 17 = 408
25 × 13 = 416
2 × 11 × 19 = 418
3 × 11 × 13 = 429
2 × 13 × 17 = 442
23 × 3 × 19 = 456
22 × 32 × 13 = 468
2 × 13 × 19 = 494
24 × 3 × 11 = 528
25 × 17 = 544
3 × 11 × 17 = 561
22 × 11 × 13 = 572
26 × 32 = 576
25 × 19 = 608
22 × 32 × 17 = 612
24 × 3 × 13 = 624
3 × 11 × 19 = 627
2 × 17 × 19 = 646
3 × 13 × 17 = 663
22 × 32 × 19 = 684
26 × 11 = 704
3 × 13 × 19 = 741
22 × 11 × 17 = 748
23 × 32 × 11 = 792
24 × 3 × 17 = 816
26 × 13 = 832
22 × 11 × 19 = 836
2 × 3 × 11 × 13 = 858
22 × 13 × 17 = 884
24 × 3 × 19 = 912
23 × 32 × 13 = 936
3 × 17 × 19 = 969
22 × 13 × 19 = 988
25 × 3 × 11 = 1,056
26 × 17 = 1,088
2 × 3 × 11 × 17 = 1,122
23 × 11 × 13 = 1,144
27 × 32 = 1,152
26 × 19 = 1,216
23 × 32 × 17 = 1,224
25 × 3 × 13 = 1,248
2 × 3 × 11 × 19 = 1,254
32 × 11 × 13 = 1,287
22 × 17 × 19 = 1,292
2 × 3 × 13 × 17 = 1,326
23 × 32 × 19 = 1,368
27 × 11 = 1,408
2 × 3 × 13 × 19 = 1,482
23 × 11 × 17 = 1,496
24 × 32 × 11 = 1,584
25 × 3 × 17 = 1,632
27 × 13 = 1,664
23 × 11 × 19 = 1,672
32 × 11 × 17 = 1,683
22 × 3 × 11 × 13 = 1,716
23 × 13 × 17 = 1,768
25 × 3 × 19 = 1,824
24 × 32 × 13 = 1,872
32 × 11 × 19 = 1,881
2 × 3 × 17 × 19 = 1,938
23 × 13 × 19 = 1,976
32 × 13 × 17 = 1,989
26 × 3 × 11 = 2,112
27 × 17 = 2,176
32 × 13 × 19 = 2,223
22 × 3 × 11 × 17 = 2,244
24 × 11 × 13 = 2,288
11 × 13 × 17 = 2,431
27 × 19 = 2,432
24 × 32 × 17 = 2,448
26 × 3 × 13 = 2,496
22 × 3 × 11 × 19 = 2,508
2 × 32 × 11 × 13 = 2,574
23 × 17 × 19 = 2,584
22 × 3 × 13 × 17 = 2,652
11 × 13 × 19 = 2,717
24 × 32 × 19 = 2,736
32 × 17 × 19 = 2,907
22 × 3 × 13 × 19 = 2,964
24 × 11 × 17 = 2,992
25 × 32 × 11 = 3,168
26 × 3 × 17 = 3,264
24 × 11 × 19 = 3,344
2 × 32 × 11 × 17 = 3,366
23 × 3 × 11 × 13 = 3,432
24 × 13 × 17 = 3,536
11 × 17 × 19 = 3,553
26 × 3 × 19 = 3,648
25 × 32 × 13 = 3,744
2 × 32 × 11 × 19 = 3,762
22 × 3 × 17 × 19 = 3,876
24 × 13 × 19 = 3,952
2 × 32 × 13 × 17 = 3,978
13 × 17 × 19 = 4,199
27 × 3 × 11 = 4,224
2 × 32 × 13 × 19 = 4,446
23 × 3 × 11 × 17 = 4,488
25 × 11 × 13 = 4,576
2 × 11 × 13 × 17 = 4,862
25 × 32 × 17 = 4,896
27 × 3 × 13 = 4,992
23 × 3 × 11 × 19 = 5,016
22 × 32 × 11 × 13 = 5,148
24 × 17 × 19 = 5,168
23 × 3 × 13 × 17 = 5,304
2 × 11 × 13 × 19 = 5,434
25 × 32 × 19 = 5,472
2 × 32 × 17 × 19 = 5,814
23 × 3 × 13 × 19 = 5,928
25 × 11 × 17 = 5,984
26 × 32 × 11 = 6,336
27 × 3 × 17 = 6,528
25 × 11 × 19 = 6,688
22 × 32 × 11 × 17 = 6,732
24 × 3 × 11 × 13 = 6,864
25 × 13 × 17 = 7,072
2 × 11 × 17 × 19 = 7,106
3 × 11 × 13 × 17 = 7,293
This list continues below...

... This list continues from above
27 × 3 × 19 = 7,296
26 × 32 × 13 = 7,488
22 × 32 × 11 × 19 = 7,524
23 × 3 × 17 × 19 = 7,752
25 × 13 × 19 = 7,904
22 × 32 × 13 × 17 = 7,956
3 × 11 × 13 × 19 = 8,151
2 × 13 × 17 × 19 = 8,398
22 × 32 × 13 × 19 = 8,892
24 × 3 × 11 × 17 = 8,976
26 × 11 × 13 = 9,152
22 × 11 × 13 × 17 = 9,724
26 × 32 × 17 = 9,792
24 × 3 × 11 × 19 = 10,032
23 × 32 × 11 × 13 = 10,296
25 × 17 × 19 = 10,336
24 × 3 × 13 × 17 = 10,608
3 × 11 × 17 × 19 = 10,659
22 × 11 × 13 × 19 = 10,868
26 × 32 × 19 = 10,944
22 × 32 × 17 × 19 = 11,628
24 × 3 × 13 × 19 = 11,856
26 × 11 × 17 = 11,968
3 × 13 × 17 × 19 = 12,597
27 × 32 × 11 = 12,672
26 × 11 × 19 = 13,376
23 × 32 × 11 × 17 = 13,464
25 × 3 × 11 × 13 = 13,728
26 × 13 × 17 = 14,144
22 × 11 × 17 × 19 = 14,212
2 × 3 × 11 × 13 × 17 = 14,586
27 × 32 × 13 = 14,976
23 × 32 × 11 × 19 = 15,048
24 × 3 × 17 × 19 = 15,504
26 × 13 × 19 = 15,808
23 × 32 × 13 × 17 = 15,912
2 × 3 × 11 × 13 × 19 = 16,302
22 × 13 × 17 × 19 = 16,796
23 × 32 × 13 × 19 = 17,784
25 × 3 × 11 × 17 = 17,952
27 × 11 × 13 = 18,304
23 × 11 × 13 × 17 = 19,448
27 × 32 × 17 = 19,584
25 × 3 × 11 × 19 = 20,064
24 × 32 × 11 × 13 = 20,592
26 × 17 × 19 = 20,672
25 × 3 × 13 × 17 = 21,216
2 × 3 × 11 × 17 × 19 = 21,318
23 × 11 × 13 × 19 = 21,736
32 × 11 × 13 × 17 = 21,879
27 × 32 × 19 = 21,888
23 × 32 × 17 × 19 = 23,256
25 × 3 × 13 × 19 = 23,712
27 × 11 × 17 = 23,936
32 × 11 × 13 × 19 = 24,453
2 × 3 × 13 × 17 × 19 = 25,194
27 × 11 × 19 = 26,752
24 × 32 × 11 × 17 = 26,928
26 × 3 × 11 × 13 = 27,456
27 × 13 × 17 = 28,288
23 × 11 × 17 × 19 = 28,424
22 × 3 × 11 × 13 × 17 = 29,172
24 × 32 × 11 × 19 = 30,096
25 × 3 × 17 × 19 = 31,008
27 × 13 × 19 = 31,616
24 × 32 × 13 × 17 = 31,824
32 × 11 × 17 × 19 = 31,977
22 × 3 × 11 × 13 × 19 = 32,604
23 × 13 × 17 × 19 = 33,592
24 × 32 × 13 × 19 = 35,568
26 × 3 × 11 × 17 = 35,904
32 × 13 × 17 × 19 = 37,791
24 × 11 × 13 × 17 = 38,896
26 × 3 × 11 × 19 = 40,128
25 × 32 × 11 × 13 = 41,184
27 × 17 × 19 = 41,344
26 × 3 × 13 × 17 = 42,432
22 × 3 × 11 × 17 × 19 = 42,636
24 × 11 × 13 × 19 = 43,472
2 × 32 × 11 × 13 × 17 = 43,758
11 × 13 × 17 × 19 = 46,189
24 × 32 × 17 × 19 = 46,512
26 × 3 × 13 × 19 = 47,424
2 × 32 × 11 × 13 × 19 = 48,906
22 × 3 × 13 × 17 × 19 = 50,388
25 × 32 × 11 × 17 = 53,856
27 × 3 × 11 × 13 = 54,912
24 × 11 × 17 × 19 = 56,848
23 × 3 × 11 × 13 × 17 = 58,344
25 × 32 × 11 × 19 = 60,192
26 × 3 × 17 × 19 = 62,016
25 × 32 × 13 × 17 = 63,648
2 × 32 × 11 × 17 × 19 = 63,954
23 × 3 × 11 × 13 × 19 = 65,208
24 × 13 × 17 × 19 = 67,184
25 × 32 × 13 × 19 = 71,136
27 × 3 × 11 × 17 = 71,808
2 × 32 × 13 × 17 × 19 = 75,582
25 × 11 × 13 × 17 = 77,792
27 × 3 × 11 × 19 = 80,256
26 × 32 × 11 × 13 = 82,368
27 × 3 × 13 × 17 = 84,864
23 × 3 × 11 × 17 × 19 = 85,272
25 × 11 × 13 × 19 = 86,944
22 × 32 × 11 × 13 × 17 = 87,516
2 × 11 × 13 × 17 × 19 = 92,378
25 × 32 × 17 × 19 = 93,024
27 × 3 × 13 × 19 = 94,848
22 × 32 × 11 × 13 × 19 = 97,812
23 × 3 × 13 × 17 × 19 = 100,776
26 × 32 × 11 × 17 = 107,712
25 × 11 × 17 × 19 = 113,696
24 × 3 × 11 × 13 × 17 = 116,688
26 × 32 × 11 × 19 = 120,384
27 × 3 × 17 × 19 = 124,032
26 × 32 × 13 × 17 = 127,296
22 × 32 × 11 × 17 × 19 = 127,908
24 × 3 × 11 × 13 × 19 = 130,416
25 × 13 × 17 × 19 = 134,368
3 × 11 × 13 × 17 × 19 = 138,567
26 × 32 × 13 × 19 = 142,272
22 × 32 × 13 × 17 × 19 = 151,164
26 × 11 × 13 × 17 = 155,584
27 × 32 × 11 × 13 = 164,736
24 × 3 × 11 × 17 × 19 = 170,544
26 × 11 × 13 × 19 = 173,888
23 × 32 × 11 × 13 × 17 = 175,032
22 × 11 × 13 × 17 × 19 = 184,756
26 × 32 × 17 × 19 = 186,048
23 × 32 × 11 × 13 × 19 = 195,624
24 × 3 × 13 × 17 × 19 = 201,552
27 × 32 × 11 × 17 = 215,424
26 × 11 × 17 × 19 = 227,392
25 × 3 × 11 × 13 × 17 = 233,376
27 × 32 × 11 × 19 = 240,768
27 × 32 × 13 × 17 = 254,592
23 × 32 × 11 × 17 × 19 = 255,816
25 × 3 × 11 × 13 × 19 = 260,832
26 × 13 × 17 × 19 = 268,736
2 × 3 × 11 × 13 × 17 × 19 = 277,134
27 × 32 × 13 × 19 = 284,544
23 × 32 × 13 × 17 × 19 = 302,328
27 × 11 × 13 × 17 = 311,168
25 × 3 × 11 × 17 × 19 = 341,088
27 × 11 × 13 × 19 = 347,776
24 × 32 × 11 × 13 × 17 = 350,064
23 × 11 × 13 × 17 × 19 = 369,512
27 × 32 × 17 × 19 = 372,096
24 × 32 × 11 × 13 × 19 = 391,248
25 × 3 × 13 × 17 × 19 = 403,104
32 × 11 × 13 × 17 × 19 = 415,701
27 × 11 × 17 × 19 = 454,784
26 × 3 × 11 × 13 × 17 = 466,752
24 × 32 × 11 × 17 × 19 = 511,632
26 × 3 × 11 × 13 × 19 = 521,664
27 × 13 × 17 × 19 = 537,472
22 × 3 × 11 × 13 × 17 × 19 = 554,268
24 × 32 × 13 × 17 × 19 = 604,656
26 × 3 × 11 × 17 × 19 = 682,176
25 × 32 × 11 × 13 × 17 = 700,128
24 × 11 × 13 × 17 × 19 = 739,024
25 × 32 × 11 × 13 × 19 = 782,496
26 × 3 × 13 × 17 × 19 = 806,208
2 × 32 × 11 × 13 × 17 × 19 = 831,402
27 × 3 × 11 × 13 × 17 = 933,504
25 × 32 × 11 × 17 × 19 = 1,023,264
27 × 3 × 11 × 13 × 19 = 1,043,328
23 × 3 × 11 × 13 × 17 × 19 = 1,108,536
25 × 32 × 13 × 17 × 19 = 1,209,312
27 × 3 × 11 × 17 × 19 = 1,364,352
26 × 32 × 11 × 13 × 17 = 1,400,256
25 × 11 × 13 × 17 × 19 = 1,478,048
26 × 32 × 11 × 13 × 19 = 1,564,992
27 × 3 × 13 × 17 × 19 = 1,612,416
22 × 32 × 11 × 13 × 17 × 19 = 1,662,804
26 × 32 × 11 × 17 × 19 = 2,046,528
24 × 3 × 11 × 13 × 17 × 19 = 2,217,072
26 × 32 × 13 × 17 × 19 = 2,418,624
27 × 32 × 11 × 13 × 17 = 2,800,512
26 × 11 × 13 × 17 × 19 = 2,956,096
27 × 32 × 11 × 13 × 19 = 3,129,984
23 × 32 × 11 × 13 × 17 × 19 = 3,325,608
27 × 32 × 11 × 17 × 19 = 4,093,056
25 × 3 × 11 × 13 × 17 × 19 = 4,434,144
27 × 32 × 13 × 17 × 19 = 4,837,248
27 × 11 × 13 × 17 × 19 = 5,912,192
24 × 32 × 11 × 13 × 17 × 19 = 6,651,216
26 × 3 × 11 × 13 × 17 × 19 = 8,868,288
25 × 32 × 11 × 13 × 17 × 19 = 13,302,432
27 × 3 × 11 × 13 × 17 × 19 = 17,736,576
26 × 32 × 11 × 13 × 17 × 19 = 26,604,864
27 × 32 × 11 × 13 × 17 × 19 = 53,209,728

The final answer:
(scroll down)

53,209,728 has 384 factors (divisors):
1; 2; 3; 4; 6; 8; 9; 11; 12; 13; 16; 17; 18; 19; 22; 24; 26; 32; 33; 34; 36; 38; 39; 44; 48; 51; 52; 57; 64; 66; 68; 72; 76; 78; 88; 96; 99; 102; 104; 114; 117; 128; 132; 136; 143; 144; 152; 153; 156; 171; 176; 187; 192; 198; 204; 208; 209; 221; 228; 234; 247; 264; 272; 286; 288; 304; 306; 312; 323; 342; 352; 374; 384; 396; 408; 416; 418; 429; 442; 456; 468; 494; 528; 544; 561; 572; 576; 608; 612; 624; 627; 646; 663; 684; 704; 741; 748; 792; 816; 832; 836; 858; 884; 912; 936; 969; 988; 1,056; 1,088; 1,122; 1,144; 1,152; 1,216; 1,224; 1,248; 1,254; 1,287; 1,292; 1,326; 1,368; 1,408; 1,482; 1,496; 1,584; 1,632; 1,664; 1,672; 1,683; 1,716; 1,768; 1,824; 1,872; 1,881; 1,938; 1,976; 1,989; 2,112; 2,176; 2,223; 2,244; 2,288; 2,431; 2,432; 2,448; 2,496; 2,508; 2,574; 2,584; 2,652; 2,717; 2,736; 2,907; 2,964; 2,992; 3,168; 3,264; 3,344; 3,366; 3,432; 3,536; 3,553; 3,648; 3,744; 3,762; 3,876; 3,952; 3,978; 4,199; 4,224; 4,446; 4,488; 4,576; 4,862; 4,896; 4,992; 5,016; 5,148; 5,168; 5,304; 5,434; 5,472; 5,814; 5,928; 5,984; 6,336; 6,528; 6,688; 6,732; 6,864; 7,072; 7,106; 7,293; 7,296; 7,488; 7,524; 7,752; 7,904; 7,956; 8,151; 8,398; 8,892; 8,976; 9,152; 9,724; 9,792; 10,032; 10,296; 10,336; 10,608; 10,659; 10,868; 10,944; 11,628; 11,856; 11,968; 12,597; 12,672; 13,376; 13,464; 13,728; 14,144; 14,212; 14,586; 14,976; 15,048; 15,504; 15,808; 15,912; 16,302; 16,796; 17,784; 17,952; 18,304; 19,448; 19,584; 20,064; 20,592; 20,672; 21,216; 21,318; 21,736; 21,879; 21,888; 23,256; 23,712; 23,936; 24,453; 25,194; 26,752; 26,928; 27,456; 28,288; 28,424; 29,172; 30,096; 31,008; 31,616; 31,824; 31,977; 32,604; 33,592; 35,568; 35,904; 37,791; 38,896; 40,128; 41,184; 41,344; 42,432; 42,636; 43,472; 43,758; 46,189; 46,512; 47,424; 48,906; 50,388; 53,856; 54,912; 56,848; 58,344; 60,192; 62,016; 63,648; 63,954; 65,208; 67,184; 71,136; 71,808; 75,582; 77,792; 80,256; 82,368; 84,864; 85,272; 86,944; 87,516; 92,378; 93,024; 94,848; 97,812; 100,776; 107,712; 113,696; 116,688; 120,384; 124,032; 127,296; 127,908; 130,416; 134,368; 138,567; 142,272; 151,164; 155,584; 164,736; 170,544; 173,888; 175,032; 184,756; 186,048; 195,624; 201,552; 215,424; 227,392; 233,376; 240,768; 254,592; 255,816; 260,832; 268,736; 277,134; 284,544; 302,328; 311,168; 341,088; 347,776; 350,064; 369,512; 372,096; 391,248; 403,104; 415,701; 454,784; 466,752; 511,632; 521,664; 537,472; 554,268; 604,656; 682,176; 700,128; 739,024; 782,496; 806,208; 831,402; 933,504; 1,023,264; 1,043,328; 1,108,536; 1,209,312; 1,364,352; 1,400,256; 1,478,048; 1,564,992; 1,612,416; 1,662,804; 2,046,528; 2,217,072; 2,418,624; 2,800,512; 2,956,096; 3,129,984; 3,325,608; 4,093,056; 4,434,144; 4,837,248; 5,912,192; 6,651,216; 8,868,288; 13,302,432; 17,736,576; 26,604,864 and 53,209,728
out of which 6 prime factors: 2; 3; 11; 13; 17 and 19
53,209,728 and 1 are sometimes called improper factors, the others are called proper factors (proper divisors).

A quick way to find the factors (the divisors) of a number is to break it down into prime factors.


Then multiply the prime factors and their exponents, if any, in all their different combinations.


Calculate all the divisors (factors) of the given numbers

How to calculate (find) all the factors (divisors) of a number:

Break down the number into prime factors. Then multiply its prime factors in all their unique combinations, that give different results.

To calculate the common factors of two numbers:

The common factors (divisors) of two numbers are all the factors of the greatest common factor, gcf.

Calculate the greatest (highest) common factor (divisor) of the two numbers, gcf (hcf, gcd).

Break down the GCF into prime factors. Then multiply its prime factors in all their unique combinations, that give different results.

The latest 10 sets of calculated factors (divisors): of one number or the common factors of two numbers

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The list of all the calculated factors (divisors) of one or two numbers

Factors (divisors), common factors (common divisors), the greatest common factor, GCF (also called the greatest common divisor, GCD, or the highest common factor, HCF)

  • If the number "t" is a factor (divisor) of the number "a" then in the prime factorization of "t" we will only encounter prime factors that also occur in the prime factorization of "a".
  • If there are exponents involved, the maximum value of an exponent for any base of a power that is found in the prime factorization of "t" (powers, or multiplicities) is at most equal to the exponent of the same base that is involved in the prime factorization of "a".
  • Hint: 23 = 2 × 2 × 2 = 8. 2 is called the base and 3 is the exponent. 23 is the power and 8 is the value of the power. We sometimes say that the number 2 is raised to the power of 3.
  • For example, 12 is a factor (divisor) of 120 - the remainder is zero when dividing 120 by 12.
  • Let's look at the prime factorization of both numbers and notice the bases and the exponents that occur in the prime factorization of both numbers:
  • 12 = 2 × 2 × 3 = 22 × 3
  • 120 = 2 × 2 × 2 × 3 × 5 = 23 × 3 × 5
  • 120 contains all the prime factors of 12, and all its bases' exponents are higher than those of 12.
  • If "t" is a common factor (divisor) of "a" and "b", then the prime factorization of "t" contains only the common prime factors involved in the prime factorizations of both "a" and "b".
  • If there are exponents involved, the maximum value of an exponent for any base of a power that is found in the prime factorization of "t" is at most equal to the minimum of the exponents of the same base that is involved in the prime factorization of both "a" and "b".
  • For example, 12 is the common factor of 48 and 360.
  • The remainder is zero when dividing either 48 or 360 by 12.
  • Here there are the prime factorizations of the three numbers, 12, 48 and 360:
  • 12 = 22 × 3
  • 48 = 24 × 3
  • 360 = 23 × 32 × 5
  • Please note that 48 and 360 have more factors (divisors): 2, 3, 4, 6, 8, 12, 24. Among them, 24 is the greatest common factor, GCF (or the greatest common divisor, GCD, or the highest common factor, HCF) of 48 and 360.
  • The greatest common factor, GCF, of two numbers, "a" and "b", is the product of all the common prime factors involved in the prime factorizations of both "a" and "b", taken by the lowest exponents.
  • Based on this rule it is calculated the greatest common factor, GCF, (or the greatest common divisor GCD, HCF) of several numbers, as shown in the example below...
  • GCF, GCD (1,260; 3,024; 5,544) = ?
  • 1,260 = 22 × 32
  • 3,024 = 24 × 32 × 7
  • 5,544 = 23 × 32 × 7 × 11
  • The common prime factors are:
  • 2 - its lowest exponent (multiplicity) is: min.(2; 3; 4) = 2
  • 3 - its lowest exponent (multiplicity) is: min.(2; 2; 2) = 2
  • GCF, GCD (1,260; 3,024; 5,544) = 22 × 32 = 252
  • Coprime numbers:
  • If two numbers "a" and "b" have no other common factors (divisors) than 1, gfc, gcd, hcf (a; b) = 1, then the numbers "a" and "b" are called coprime (or relatively prime).
  • Factors of the GCF
  • If "a" and "b" are not coprime, then every common factor (divisor) of "a" and "b" is a also a factor (divisor) of the greatest common factor, GCF (greatest common divisor, GCD, highest common factor, HCF) of "a" and "b".