30, 60, 90, 120, 150
30, 60, 90
What are the first three common multiples of four and five
They are multiples of 60.
30, 60, 90, 120, 150
Any multiples of 20.
6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96,102 and blah, blah, and blah and so on..... There's 15 multiples of six for ya.
They are the six multiples of 15.
Any of the multiples in the six times table can be common.
The common multiples of 5 and 6 are the multiples of their lowest common multiple (which is 30), so there are infinitely many common multiples of 5 and 6. The first five are: 30, 60, 90, 120, 150.
The first five multiples of 5 are 5, 10, 15, 20 and 25. For them to be common, they need to be compared to another set of multiples.
The first five multiples of 15 are 15, 30, 45, 60, 75. For them to be common, they need to be compared to another set of multiples.