2 and 3
How about: 3 and 4
6 and 12, among others.
36 and 48 12 and any multiple of 12
There is no "greatest common multiple" for any pair of numbers. If you meant greatest common factor, the answer is 3.
12 and 10 20 and 30
12
The pair of numbers that satisfies those conditions is 12 and 252.
12 and 24, among others.
Because any multiple cam be multiplied. A common multiple of 3 and 6 is 12. That means that every multiple of 12 also has 3 and 6 as factors.
1 and 36 12 and 18 4 and 9
The least common multiple of the numbers 12 and 34 is 204.
48 and 36