They are: 44, 48, 52, 56, 60, 64, 68, 72, 76.
The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 Those which are multiples of 4 are: 4, 8, 16, 20, 40, 80
40, 80, 120 +40 . . .
20, 40, 60, 80, 100, 120 * * * * * These are the first six multiples!
The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, and so on. The multiples of 10 are 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, and so on.
Everything except 20, 40, 60, 80 and 100.
40, 80, 120
No number has the multiples of 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, but the number 80 (and all its multiples: 160, 240, 320, 400, ...) has them all as FACTORS.
Multiples are the "times tables" of a number. So the first four multiples of 40 are: 40, 80, 120, 160...
The first 5 multiples of 4 and 20 are 20, 40, 60, 80, 100
40, 80, 120
40, 80 ,120.
40, 80, 120