Question

What is the greatest common factor for 30,48,60 and whats the GCF ??????

Answer 1

30 = 2 * 3 * 5 

48 = 2⁴ * 3 

60 = 2² * 3 * 5 

GCF = 2 * 3 = 6

Answer 2

The greatest common factors are
30: 1,2,3,5,6,10,15,30
48: 1,2,3,4,6,8,12,16,24,48
60:1,2,3,4,5,6,10,12,15,20, 30,60
So therefore the GCF is 6