The solution to 5 × 1 will be what kind of number?
A. Even
B. Perfect square
C. Prime
D. A multiple of 2
3 Answers

5×1 = 5 .. which is PRIME (because you can only divide it by 5 or 1).
Looking at the other options :
It’s odd and not even .. so it’s not a multiple of 2 either (only even numbers are)
and because it’s prime it isn’t the square of anything either.

C. prime

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