What is the greatest common factor of 6 3 and 45?

Answer 1

The simplest is Euclid's method : Start with 45, 60

minimum is 45 : subtract minimum from bigger number(s): 45, 15

minimum is 15 : subtract minimum from bigger number(s): 30, 15

minimum is 15 : subtract minimum from bigger number(s): 15, 15

minimum is 15 , maximum is also 15 so GCF is 15.

Answer 2

3 x 3 x 5 = 45

2 x 2 x 3 x 5 = 60

Select the common factors.

3 x 5 = 15, the GCF

Answer 3

List the factors.

Select the largest number that appears on all three lists.

The answer will be 1.

Answer 4

The GCF is 3.

Answer 5

GCF(-45, 6, 10) is not a person.