Is 3 a divisor of 51?

1 Answer
George C.
Mar 28, 2016

Yes

Explanation:

51=3⋅17

A shortcut to tell whether a whole number is divisible by 3 is to add its digits together and see if the result is divisible by 3.

For example, in the case of 51, we find 5+1=6=2⋅3

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