###### Asked in Factoring and Multiples

# What is the greatest common factor of 60 and 80?

## Answer

###### Wiki User

###### 10/18/2016

**The GCF of 60 and 80 is** 20

**Definition**: A factor is a divisor - a number that will
evenly divide into another number. The greatest common factor of
two or more numbers is the largest factor that the numbers have in
common.

**Method**:

One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.

The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80.

The common factors are 1, 2, 4, 5, 10, and 20. Therefore, the greatest common factor is 20.

###### Wiki User

###### 10/15/2016

GCF(60, 80) = 20.