Question

5. State whether the number 91 is prime, composite, or neither.

Answer 1

91 is composite

Explanation:

its factors are 1, 7, 13, 91

Answer 2

91 is a composite number

Explanation:

A prime number is the positive number, which has factors 1 and itself.

Example : 1,3,5,7

Clearly 91 is not a prime number, as its factors are:

91 = 1,7,13,91

It has more than 2 factors (1 and itself), hence 91 is a composite number.

Composite number is the number which has factors other than 1 and itself.