1 and 3.
1, 3, 7, 9, 21, 63.
1, 3, 7, 9, 21, 63.
1, 3, 7, 9, 21 and 63.
1, 3, 7, 9, 21, 63.
21 and 9 21 - 9 = 12 21+9 = 30
1, 3, 7, 9, 21, 63.
The GCF of 9 and 21 is 3.
1, 3, 7, 9, 21, 27, 63, 189.
1, 3, 7, 9, 21, 27, 63, 189.
These are the whole numbers that go into 126 evenly: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126.
The number 63 can be evenly divided by 1, 3, 7, 9, 21, and 63.