140,280,420
-the first 10 multiples of 20 are 20,40,60,80,100,120,140,160,180, and 200. :)
5 + 10+15+20=50 ans
The first 3 multiples of 7 are: 7, 14, and 21.
-15
The first four multiples of five: 5, 10, 15, 20
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 . . .
the first three common multiples of 7, 20, and 35 are 140, 280, and 420
140, 280, 420 and so on.
140,280,420
140, 280, 420 and so on.
They are: 140, 280 and 420
140, 280, 420
140, 280, 420
140, 280, 420, 560, 700
-the first 10 multiples of 20 are 20,40,60,80,100,120,140,160,180, and 200. :)
These are the first 90 multiples of 7:714212835424956637077849198105112119126133140147154161168175182189196203210217224231238245152159266273280287294301308315322329336343350357364371378385392399406413420427434441448455462469476483490497504511518525532539546553560567574581588595602609616623630