Factors of 126 are 1, 2, 3, 6, 7, 18, 21, 42, 63, 126 Of those factors, 3, 6, 18, 21, 42, 63, 126 are multiples of 3.
Take the multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, etc. Now, eliminate every fourth number in the sequence (the multiples of 4). The remaining numbers will be multiples of 3, but not of 4.
There are more than four, starting with 12, 15, 18 and 21.
Factors of 21 = 1, 3, 7, 21 Multiples of 21: 21, 42, 63, 84, 105, 126, 147 +21 . . .
Yes, for example the multiples of 2 are: 2, 4, 6, 8, 10, 12, 14, ......etc. (all even numbers are multiples of 2) or multiples of 3 are 3, 6, 9, 12, 15, 18, 21, ....... etc.
18, yes.21, no.
there are infinite amount of common multiples.
Multiples of 6: 12, 18, 24 Multiples of 7: 14, 21, 28
3, 6, 9, 12, 15, 18, and 21 are.
3, 6, 9, 12, 15, 18, 21.
three
All multiples of 72 are greater than 21. If you're looking for factors of 72, use 9 and 12 or 18 and 3
The multiples of 3 are: 3, 6, 9, 12, 15, 18, 21, etc ...The multiples of 6 are: 6, 12, 18, 24, etc ...The multiples of 18 are: 18, 36, 54, etc ...The lowest multiple common to 3, 6, and 18 is 18, so the LCM = 18.
3, 6, 9, 12, 15, 18, 21
The multiples of 3 are 3, 6, 9, 12, 15, 18, 21 and so on. The first six multiples of 6 are 6, 12, 18, 24, 30, 36, 42 and so on. Common multiples include all the multiples of 6.
3, 6, 9, 12, 15, 18, 21 and so on.
6, 12, 18. 7, 14, 21.