The document contains questions about prime numbers and factors. It asks the user to identify prime numbers in lists, determine if numbers are prime, find missing prime factors, and identify the prime factorizations and highest common factors of various numbers.

1. Prime NumbersYear 9 Qwizdom

2. Find the prime!1015685

3. Find the prime!25131218100

4. Find the prime!246810

5. Find the prime!332235507

6. Find the prime!8117491441000

7. True or False?1 is a prime number

8. What’s the missing prime factor?

9. What’s the missing prime factor?

10. Which is the product of prime factors for 50?5 x 10 = 505 x 2 x 2 x 5 = 505 x 5 x 2 = 5025 x 2 = 50

11. Which is the product of prime factors for 81?9 x 9 = 813 x 3 x 3 = 813 x 3 x 3 x 3 = 818 x 1 = 81

12. Which is the product of prime factors for 28?2 x 2 x 7 = 287 x 4 = 2814 x 2 = 283 x 2 x 3 = 28

13. What is the common factor of 10 and 14?2 x 5 = 102 x 7 = 14

14. What is the common factor of 15 and 18?3 x 5 = 153 x 3 x 2 = 18

15. What is the HIGHEST common factor of 20 and 30?2 x 2 x 5 = 203 x 2 x 5 = 30

16. What is the HIGHEST common factor of 12 and 18?2 x 2 x 3 = 122 x 3 x 3 = 18

17. What is the HIGHEST common factor of 9 and 18?3 x 3 = 93 x 3 x 2 = 18