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No number between 20 and 40 is divisible by all 4 numbers. The smallest number divisible by all 4 of those numbers is: 56
A prime number won't be divisible by 5
The number is 40.
The number is 48.
the number is 48
48.
56.
36
36
None is divisible by all those.
40*36 = 1440 is divisible (not divisable) by both. It is not the samllest such number, but that was not required by the question.
40 is divisible by 1, 2, 4, 5, 8, 10, 20 and 40.