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, 210, 315 and so on.
105 and 210
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
Well, honey, any number that is a square of a prime number will have more than 10 factors. So, for example, 16 is the square of 4, a prime number, and it has 10 factors. But if you want more than 10 factors, you gotta step it up to numbers like 36, which is the square of 6, and has 18 factors. Math can be sassy too, you know!