20, 40, 60
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
write the first three common. multiples of 3,4,5
There are more than 5 multiples of three, but here are the first 5: * 6 * 9 * 12 * 15 * 18
5, 10, 15... It helps!!
The first three multiples of 3 and 5 are 15, 30 and 45.
The first three multiples of 456 are 456, 912 and 1368. The first three multiples of 4, 5 and 6 are 60, 120 and 180.
The first three multiples of 235 are 235, 470 and 705. For them to be common, they need to be compared to another set of multiples. The first three common multiples of 2, 3 and 5 are 30, 60 and 90.
10, 20, 30 The common multiples of 5 and 10 are multiples of their lowest common multiple. The lcm of 5 and 10, is 10. Thus the first three common multiples are 10, 20, 30.
20
15, 30, 45
10, 20 and 30.
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