3 and 9
1 and 3 go into both.
These are the whole numbers that go into 27 evenly: 1, 3, 9, 27.
1, 3, 5, 9, 15, 45
1, 3, 9, 37, 111 and 333.
These are the whole numbers that go into 9 evenly: 1, 3, 9.
3 and 9
1 and 3 go into both.
1, 3, and 9.
1, 3, 9, 27.
These are the whole numbers that go into 27 evenly: 1, 3, 9, 27.
1, 3 and 9 will go into both numbers evenly
Each of these numbers will go evenly into 18: 1, 2, 3, 6, 9, 18.
The numbers that divide evenly into 18 are 1, 2, 3, 6, 9, 18, and the negative of each of those.
1, 3, 7, 9, 21, 63.
Factors of 27.... 1, 3, 9 & 27
1, 3, 5, 9, 15, 45.