Question

Can someone help me with this

Find the GCF of 27 and 45 using lists of factors

Answer 1

I think this answer

1.Factors of 27 are {1,3,9,27)

2.Factors of 45 are {1,3,5,9,15,45)

3.Common factors are {1,3,9

the biggest common factor number is the gcf number. So the greatest commen factor 27&45 is 9