# 145 is not prime, is a composite number.

145 = 5 * 29;

A composite number is a positive integer that has at least one factor (divisor) other than 1 and itself.

Positive integers that are only dividing by themselves and 1 are called prime numbers.

## Online calculator: numbers prime factorization

## see more: Coprime numbers (relatively prime)

## Latest factored numbers

145 = 5 * 29 | May 23 16:44 UTC (GMT) |

4,053 = 3 * 7 * 193 | May 23 16:44 UTC (GMT) |

138,262 = 2 * 73 * 947 | May 23 16:44 UTC (GMT) |

8,400 = 2^{4} * 3 * 5^{2} * 7 | May 23 16:44 UTC (GMT) |

2,800 = 2^{4} * 5^{2} * 7 | May 23 16:44 UTC (GMT) |

4,665 = 3 * 5 * 311 | May 23 16:44 UTC (GMT) |

69 = 3 * 23 | May 23 16:44 UTC (GMT) |

23 is a prime number | May 23 16:44 UTC (GMT) |

17 is a prime number | May 23 16:44 UTC (GMT) |

72 = 2^{3} * 3^{2} | May 23 16:44 UTC (GMT) |

104 = 2^{3} * 13 | May 23 16:44 UTC (GMT) |

194 = 2 * 97 | May 23 16:44 UTC (GMT) |

3 is a prime number | May 23 16:44 UTC (GMT) |

see more... integer numbers factored down to their prime factors |