There are 74
74.
There are 16 such numbers.
101103107109 and 113
There are 8 composite numbers between 90 and 100. They are 91, 92, 93, 94, 95, 96, 98, and 99.
Numbers....hehe
9
number of composite numbers between 81 and 100 = 15composite numbers between 81 and 100 = 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99
All of them except 83, 89 and 97 which are prime numbers
There are 74 composite numbers.
Search the Internet for a list of prime numbers - the Wikipedia article on prime numbers might list a few. All numbers between 2-100 that are not prime, are composite. (The number is not counted as prime, nor as composite.)
Out of those 100 numbers, 21 of them are prime numbers, so the remaining (100 - 21) = 79 are composite.