# Calculate the Greatest Common Factor or GCF of 1135

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The instructions to find the GCF of 1135 are the next:

## 1. Decompose all numbers into prime factors

1135 | 5 |

227 | 227 |

1 |

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

Prime factors of 1135 | = | 5 . 227 |

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

Common prime factors: 5 , 227

Common prime factors with the lowest exponent: 5^{1}, 227^{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}. 227^{1} = 1135

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