140, 280, 420, 560, 700, 840
5 + 10+15+20=50 ans
The first 6 multiples of 7 are: 7, 14, 21, 28, 35, and 42.
The first four multiples of five: 5, 10, 15, 20
Since the lowest common multiple of 6 and 7 is 42, the multiples of 6 and 7 are multiples of 42. The first five are: 42 84 126 168 210
6, 12, 18. 7, 14, 21.
the first three common multiples of 7, 20, and 35 are 140, 280, and 420
The number of integers that are multiples of both 20 and 7 is infinite. Here are the first few: 140, 280, 420, 560, 700, 840 . . .
140, 280, 420 and so on.
The First common multiple of 6 and 7 is 42 and the next common multiple is 84.
7, 14, 21, 28, 35, 42
7, 14, 21, 28, 35, 42
140,280,420