# Prime Numbers - Page 2

Questions

- What is the composite number between 20 and 40?
- Is 81 a prime number?
- Is 10 a prime or composite?
- Why is a prime number not a square number?
- Is 37 composite or prime?
- How many composite numbers are between 1 and 100?
- How many prime numbers are less than 20?
- Why is 2 the only even prime number?
- Is 79 a prime number?
- What are all the multiples of 7 and 2?
- Is 31 a prime or composite number?
- How are prime numbers used?
- Is 101 a prime number?
- Is 75 prime or composite?
- What numbers between #11# and#19# are composite numbers?
- Is 89 a prime number?
- Is 18 prime or composite?
- What is a prime number between 70 and 80?
- How many composite numbers are between 1 and 50?
- What factors do 8 and 12 have in common?