No numbers between 1 and 100 have exactly eleven factors. 60, 72, 84, 90 and 96 each have twelve factors.
There are three of them with exactly five factors.
Three numbers.
Squares of prime numbers have only three factors.
Factors don't have numbers. Numbers have factors. Numbers that have the factors 2, 4 and 8 are 8 and all of its multiples.
Composite numbers
Numbers with exactly three factors are squares of prime numbers.
The numbers with only three factors are squares of prime numbers.
Squares of prime numbers have exactly three factors.
There are three numbers that fit those requirements.
There are no prime numbers with three factors. By definition, a prime number has exactly two factors - 1 and itself.
A prime number has no other factors except itself and 1. There are three numbers between 80 and 100 that are prime: 83, 89 and 97.