The Least Common Multiple of 21 and 30 is 210.
There are an infinite number of common multiples of 21 and 15 .The smallest two of them are 105 and 210 . A couple of others are 1,890 and 453,705 .
21, 42, 63, 84, 105, 126, 147, 168, 189, 210, 231, 252, 273, . . .
21, 42, 63, 84, 105, 126, 147, 168, 189, 210 and just keep adding 21 until you get to 987.
21,42,63,84
There are infinitely many multiples of 9 and 21 so it is impossible to list them. One of their multiples is 9*21 = 189.
It is 210.
105 and 210 are.
105, 210
210, 420, 630, 840 . . .
105 and 210
105, 210, 315 and so on.
Factors: 1, 3, 7, 21. Multiples: 21, 42, 63, 84, 105, 126, 147, 168, 189, 210 +21 . . .
The Least Common Multiple of 21 and 30 is 210.
21,42,64,86,108,130,152,174,196,218They are 21, 42, 63, 84, 105, 126, 147, 168, 189, 210.
84/42 = 2 210/21 = 10
The multiples of 21 are 21, 42, 63, 84, etc. and increasing without limit, each multiple being 21 more than the previous.good