21, 42, 63, 84, 105, 126 . . .
the set of multiples for 7 is infinite
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 four multiples of seven are 7, 14, 21, and 28.
Odd multiples of 21.
Multiples of 6: 12, 18, 24 Multiples of 7: 14, 21, 28
Factors: 1, 3, 7, 21 Multiples: 21, 42, 63, 84 and so on.
7, 14 and 21.
The first 3 multiples of 7 are: 7, 14, and 21.
Multiples of 7: 7, 14, 21, 28, 35,... Multiples of 19: 19, 38, 57, 76, 95,...
It is 7!
14 21
The LCM of 3 and 7 is 21