42, 84, 126 and so on.
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
Two common multiples of 21 and 15 are 105 and 315.
Multiples of 6: 12, 18, 24 Multiples of 7: 14, 21, 28
Common multiples include 168, 336 and 504
The Least Common Multiple of 21 and 30 is 210.
Odd multiples of 21.
42
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
There are 10 multiples of 6 in that range.
Multiples of 3 are 3, 6, 9 and so on. Multiples of 7 are 7, 14, 21 and so on. The common multiples of 3 and 7 include 21, 42, 63 and so on.
there are infinite amount of common 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.
no they are nor multiples of 6
The common multiples of 3 and 21 are 21, 42, 63 and so on.
Multiply 21 and 11 to get a common multiple. Since 21 and 11 have no common factors, that also happens to be the least common multiple.All other common multiples are multiples of this least common multiple.
Multiples of 6 include 6, 12 and 18. For them to be common, they need to be compared to another set of multiples.