Question

Is the integer below prime or composite?

45

A. composite
B. prime

Answer 1

a prime number is a number which have the factor 1 and itself E.g 43...Factors 1 and 43
a composite number is a number which have more than two factors. E.g 4 Factors 1, 2 and 4
So find the number of factors of 45 and then decide which category does it fall into

Answer 2

Composite