# Calculate the Greatest Common Factor or GCF of 1042

Sponsors

The instructions to find the GCF of 1042 are the next:

## 1. Decompose all numbers into prime factors

1042 | 2 |

521 | 521 |

1 |

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

Prime factors of 1042 | = | 2 . 521 |

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

Common prime factors: 2 , 521

Common prime factors with the lowest exponent: 2^{1}, 521^{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** = 2^{1}. 521^{1} = 1042

Also calculates the: