Across
- 3. The sum of the first 4 prime numbers
- 6. The only even prime number
- 8. The number of multiples a given number has
- 10. The greatest factor of 11
- 11. Number which has only two factors: 1 and itself
- 12. The greatest common factor of 30 and 10
- 13. The number of factors of 4
- 14. A number which has more than 2 factors
Down
- 1. The result of multiplying a number by an integer
- 2. A number that divides exactly into another number
- 4. The least common multiple of 9 and 2
- 5. animal species which uses prime numbers in their cycles
- 6. The sum of all the factors of 19
- 7. A factor of all the numbers
- 9. The smallest multiple of 9