All of them except 83, 89 and 97 which are prime 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.)
Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite numbers.
All of those numbers are composite.
They are all the numbers except 79 83 89 and 97 which are prime numbers because they have only two factors.
3665, excluding 25 and 100.
All of them except for 83, 89 and 97 which are prime numbers
All numbers between 80 and 100 except 83, 89, and 97 are composites.
All of them except 83, 89 and 97 which are prime 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.)
Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite numbers.
All of those numbers are composite.
4, 10, 20, 25, 50, 100 are the composite factors of 100.
All of them except for 83, 89 and 97 which are prime numbers.
All of them except for 83, 89 and 97 which are prime numbers
They are all the numbers except 79 83 89 and 97 which are prime numbers because they have only two factors.
The GCF of all the composite numbers under 100 is 1. For e.g 4 & 9 are composite numbers & their GCF is 1, so if we take other composite numbers along with 4 & 9 the GCF will be 1.