# Calculate the Greatest Common Factor or GCF of 1166

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The instructions to find the GCF of 1166 are the next:

## 1. Decompose all numbers into prime factors

1166 | 2 |

583 | 11 |

53 | 53 |

1 |

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

Prime factors of 1166 | = | 2 . 11 . 53 |

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

Common prime factors: 2 , 11 , 53

Common prime factors with the lowest exponent: 2^{1}, 11^{1}, 53^{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}. 11^{1}. 53^{1} = 1166

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