# Greatest common factor (GCF)

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### gcf(4,18)

This solution deals with the greatest common factor.

Solution found

- Greatest common factor (GCF)

## Step by Step Solution

#### Calculate Greatest Common Factor for :

4, 18

#### Factorize of the above numbers :

4 = 2^{2}

18 = 2 • 3^{2}

#### Build a prime factors table

Prime Factor | Number 4 | Number 18 | G.C.F (min) |
---|---|---|---|

2 | 2 | 1 | 1 |

3 | 0 | 2 | 0 |

GCF = 2