Given the Number 1,080,864, Calculate (Find) All the Factors (All the Divisors) of the Number 1,080,864 (the Proper, the Improper and the Prime Factors)

All the factors (divisors) of the number 1,080,864

1. Carry out the prime factorization of the number 1,080,864:

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


1,080,864 = 25 × 35 × 139
1,080,864 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 1,080,864

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
22 × 3 = 12
24 = 16
2 × 32 = 18
23 × 3 = 24
33 = 27
25 = 32
22 × 32 = 36
24 × 3 = 48
2 × 33 = 54
23 × 32 = 72
34 = 81
25 × 3 = 96
22 × 33 = 108
prime factor = 139
24 × 32 = 144
2 × 34 = 162
23 × 33 = 216
35 = 243
2 × 139 = 278
25 × 32 = 288
22 × 34 = 324
3 × 139 = 417
24 × 33 = 432
2 × 35 = 486
22 × 139 = 556
23 × 34 = 648
2 × 3 × 139 = 834
25 × 33 = 864
22 × 35 = 972
This list continues below...

... This list continues from above
23 × 139 = 1,112
32 × 139 = 1,251
24 × 34 = 1,296
22 × 3 × 139 = 1,668
23 × 35 = 1,944
24 × 139 = 2,224
2 × 32 × 139 = 2,502
25 × 34 = 2,592
23 × 3 × 139 = 3,336
33 × 139 = 3,753
24 × 35 = 3,888
25 × 139 = 4,448
22 × 32 × 139 = 5,004
24 × 3 × 139 = 6,672
2 × 33 × 139 = 7,506
25 × 35 = 7,776
23 × 32 × 139 = 10,008
34 × 139 = 11,259
25 × 3 × 139 = 13,344
22 × 33 × 139 = 15,012
24 × 32 × 139 = 20,016
2 × 34 × 139 = 22,518
23 × 33 × 139 = 30,024
35 × 139 = 33,777
25 × 32 × 139 = 40,032
22 × 34 × 139 = 45,036
24 × 33 × 139 = 60,048
2 × 35 × 139 = 67,554
23 × 34 × 139 = 90,072
25 × 33 × 139 = 120,096
22 × 35 × 139 = 135,108
24 × 34 × 139 = 180,144
23 × 35 × 139 = 270,216
25 × 34 × 139 = 360,288
24 × 35 × 139 = 540,432
25 × 35 × 139 = 1,080,864

The final answer:
(scroll down)

1,080,864 has 72 factors (divisors):
1; 2; 3; 4; 6; 8; 9; 12; 16; 18; 24; 27; 32; 36; 48; 54; 72; 81; 96; 108; 139; 144; 162; 216; 243; 278; 288; 324; 417; 432; 486; 556; 648; 834; 864; 972; 1,112; 1,251; 1,296; 1,668; 1,944; 2,224; 2,502; 2,592; 3,336; 3,753; 3,888; 4,448; 5,004; 6,672; 7,506; 7,776; 10,008; 11,259; 13,344; 15,012; 20,016; 22,518; 30,024; 33,777; 40,032; 45,036; 60,048; 67,554; 90,072; 120,096; 135,108; 180,144; 270,216; 360,288; 540,432 and 1,080,864
out of which 3 prime factors: 2; 3 and 139
1,080,864 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.

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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".