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3 years ago

14

Two integers, a and b have a product of 15. what is the least possible sum of a and b?

1 answer:

Neporo4naja [7]3 years ago

7 0

If they're integers, that means they can't be fractions (such as 15/2 and 2).

So the only couples of integers that, when multiplied, result in 15 are:

1 and 15
5 and 3.

(there are no other possibilities as both 5 and 3 are not divisible further).
The smaller of the two sums (15+1; 5+3) is 5+3=8.

The least possible sum of a and b is 8.

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