Across
- 5. a base number raised to the power of another number.
- 6. ancient algorithm for finding all prime numbers
- 7. its factors are 1 and itself.
- 8. used for counting and ordering.
Down
- 1. numbers multiplied together to get another number.
- 2. the opposite of a prime number.
- 3. numbers without fractions.
- 4. used to find out if one number is a factor of another.