# Calculate the Greatest Common Factor or GCF of 1315

Sponsors

The instructions to find the GCF of 1315 are the next:

## 1. Decompose all numbers into prime factors

1315 | 5 |

263 | 263 |

1 |

## 2. Write all numbers as the product of its prime factors

Prime factors of 1315 | = | 5 . 263 |

## 3. Choose the common prime factors with the lowest exponent

Common prime factors: 5 , 263

Common prime factors with the lowest exponent: 5^{1}, 263^{1}

## 4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

**GCF** = 5^{1}. 263^{1} = 1315

Also calculates the: