They are: 21, 42 and 63
21, 42 and 63
21
The most common multiples are 13 3 3234 2 2 2 2 232
336, 672, 1008
The common multiples of 3 and 21 are 21, 42, 63 and so on.
Odd multiples of 21.
Any multiple of 21.
The common multiples of 3 and 7 are 21, 42, 63 and so on.
3
21
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.
The LCM is: 21