56, 72, 80
20, 40, 60, 80, 100, 120 * * * * * These are the first six multiples!
The first 5 multiples of 20 are: 20, 40, 60, 80, and 100.
The first five are these: 40, 80, 120, 160, 200.
The common multiples of 5 and 8 are the multiples of their lowest common multiple; lcm(5, 8) = 40 → the first five common multiples of 5 and 8 are: 40, 80, 120, 160, 200.
That's an infinite list that includes all the multiples of 80.
56, 72, 80
20, 40, 60, 80, 100.
20, 40, 60, 80, 100, 120 * * * * * These are the first six multiples!
16, 32, 48, 64, 80
The first 5 multiples of 20 are: 20, 40, 60, 80, and 100.
Not all multiples of 40 are multiples of 80. Only the even multiples of 40 are also multiples of 80. The odd multiples, e.g. 40, 120, 200, 280, and 360, are not multiples of 80.
Multiples of 80 are 10 and 8
20-40-60-80-100-120
The first five are these: 40, 80, 120, 160, 200.
40, 80, 120, 160, 200
40, 80, 120, 160 and 200. By Kiara Simone