What is the greatest common factor of 18 42 and 60?

Answer 1

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 both numbers have in common.

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 18 are 1, 2, 3, 6, 9, and 18.

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.

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

The common factors are 1, 2, 3, and 6. Therefore, the greatest common factor is 6.

Answer 2

Oh honey, the greatest common factor of 18, 42, and 60 is 6. It's like finding the perfect little black dress that fits all three of them, just divide each number by 6 and you'll see what I mean. Math can be a real fashion show sometimes, darling.

Answer 3

GCF(42, 60, 18) = 6