63 * 1 = 63
63 * 2 = 126
63 * 3 = 189
63 * 4 = 252
21,42 and 63 are the first three multiples
63, 126, 189, 252, 315.
The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
7,14,21,28,35,42,49,56 & 63
They are: 63, 126.
The first five multiples of 21 are: 21, 42, 63, 84, 105.
The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
The total number of integers that are multiples of both 9 and 21 is infinite. Here are the first few: 63, 126, 189, 252, 315, 378, 441, 504 . . .
LCM(9, 21) = 63 so the numbers are 63, 63*2 and 63*3.
21, 42, 63, 84.
63, 126 and 189
21, 42, 63.