10
15 is. Intriguingly, it's also the 3rd multiple of 5.
The fifth multiple of four is twenty. 5 * 4 = 20
2 multiples of 9, which is 18.
lcm(2, 7) = 14 5th multiple is 5 x 14 = 70
Excluding zero, the fifth multiple is 25. (5, 10, 15, 20, 25)
It is 40
225
20 and 24
35.
55
A fifth of 2 is 0.4