Factor them.
3 x 3 x 5 = 45
2 x 3 x 5 x 5 = 150
Select the common factors.
3 x 5 = 15, the GCF
The GCF is 5.
The GCF is 5.
The GCF is 15.
15
15
The GCF is 15. The LCM is 450.
Their gcf is 15 .
The GCF is 15.
The greatest common factor of the numbers 180 and 150 is 30.
First you find the factors of 45 and 60. The Factors of 45 are:1,3,5,9,15,and 45 The Factors of 60 are:1,2,3,4,5,6,10,12,15,20,30,60 The GCF is the highest common number so the GCF is 15.
Factors of 45: 1 3 5 9 15 45 Factors of 150: 1 2 3 5 6 10 15 25 30 50 75 150 The GCF of 45 and 150 is 15
Greatest common factor of 27 45 and 126 is 9.