3
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, 11, 33, 99.
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.
Factors of 27.... 1, 3, 9 & 27
1, 3, 9, 37, 111, 333.
1, 3, 5, 9, 15, 45.