Name:_____________ Prime Factorization Worksheet © mathkinz
Date:______________
Score:______________
Find prime factors of following numbers
| Q.1) 8 = 2 x 2 x 2 | Q.2) 23 = 23 |
| Q.3) 15 = 3 x 5 | Q.4) 72 = 2 x 2 x 2 x 3 x 3 |
| Q.5) 19 = 19 | Q.6) 64 = 2 x 2 x 2 x 2 x 2 x 2 |
| Q.7) 39 = 3 x 13 | Q.8) 11 = 11 |
| Q.9) 42 = 2 x 3 x 7 | Q.10) 14 = 2 x 7 |
| Q.1) Is 3 a prime factor of 26 False | Q.2) Is 7 a prime factor of 126 True |
| Q.3) Is 9 a prime factor of 343 False | Q.4) Is 31 a prime factor of 124 True |
| Q.5) Is 3 a prime number True | Q.6) Is 21 a composite number True |
| Q.7) Is 3 a composite number False | Q.8) Is 9 a composite number True |