12 and 20
8,16
5,65,7
In base 10, all numbers whose last digit is a 5 or a 0
Numbers whose only common factor is 1.
As long as one of the numbers is 12, the other 2 can be any other multiples of 12. 12, 1200, 12000
8,16
29 and 4147
this is hard
The GCF is 16.
12 and 20
4 and 9
28 and 56
5,65,7
The answer is: 3
The numbers are 5 and 10.
60
12 and 72 24 and 36