1 is the only number having exactly one factor.

Q. Find numbers between 1 and 100 having exactly three factors.

Q.

Which are the numbers between 1 and 100 that have exactly three factors?

Q.

Two numbers having '1' as the only common factor are called ___ numbers.

Q. numbers are the numbers that have only two factors, one and the number itself.

Q. The numbers having only 1 and itself as its factors are called prime numbers.