# Calculate the Greatest Common Factor or GCF of 1086

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The instructions to find the GCF of 1086 are the next:

## 1. Decompose all numbers into prime factors

1086 | 2 |

543 | 3 |

181 | 181 |

1 |

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

Prime factors of 1086 | = | 2 . 3 . 181 |

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

Common prime factors: 2 , 3 , 181

Common prime factors with the lowest exponent: 2^{1}, 3^{1}, 181^{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}. 3^{1}. 181^{1} = 1086

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