Any multiple of 15.
Any multiple of 15 is also a multiple of 3.
30
30, 60, 90
30,60,90 6:6,12,18,24,30,36,42,48,54,60,66,72,78,84,90 15:15,30,45,60,75,90
The GCF is 3.
The first 5 multiples of 12 are: 12, 24, 36, 48, and 60.The first 5 multiples of 15 are: 15, 30, 45, 60, and 75.
It is: 15
1 and 3
1 and 3
The GCF is: 3
1 and 3
1 and 3.