12 and any of its multiples
12, 24, 36, 48
The common multiples of 3 and 21 are 21, 42, 63 and so on.
The factors of 2 are 1 and 2. The factors of 3 are 1 and 3. Common multiples of 12 and 18 include any multiple of 36.
30
Common Multiples of 8:8,16,24,32,40,48,56,64,72,80,88 and 96 Common Multiples of 12:12,24,36,48,60,72,84 and 96
All multiples of 12 are also multiples of 6 and they all can be written as the sum of nine numbers.
Since 36 is a multiple of 12, all of its multiples are common.
Since the LCM is 12 then the common multiples are multiples of 12 12, 24, 36, 48
LCM(2, 3, 4) = 12.
Least common multiples 12 and 16 is 48.
The first 3 common multiples of 4 and 12 are: 12, 24, 36
The first 2 common multiples of 4 and 12 are 12 and 24.