The most common multiples are 13 3 3234 2 2 2 2 232
21, 42 and 63
They are: 21, 42 and 63
If that's 9, 14 and 21, the first three common multiples are 126, 252 and 378.
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
105 and 210
21
Multiples of 21 include 21, 42, 63, 84 and so on. For them to be common, they need to be compared to another set of multiples.
there are infinite amount of common multiples.
Multiples of 21 include 21, 42, 63, 84 and 105. For them to be common, they need to be compared to another set of multiples.
The common multiples of 9 and 21 are 63, 126, 189 and so on.
Two common multiples of 21 and 15 are 105 and 315.
They are multiples of 63