Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {3, 23, 29, 25, 17, 11} → ______
- Prime numbers in {11, 13, 21, 7, 19, 3} → ______
- Prime numbers in {29, 11, 19, 3, 27, 23} → ______
- Prime numbers in {21, 23, 12, 29, 17, 5} → ______
- Prime numbers in {17, 12, 2, 15, 11, 3} → ______
- Prime numbers in {11, 19, 17, 29, 8, 3} → ______
- Prime numbers in {15, 17, 9, 19, 8, 5} → ______
- Prime numbers in {29, 13, 19, 17, 23, 21} → ______
- Prime numbers in {7, 2, 29, 12, 8, 21} → ______
- Prime numbers in {25, 12, 21, 8, 29, 19} → ______
- Prime numbers in {5, 12, 7, 15, 27, 13} → ______
- Prime numbers in {8, 19, 7, 29, 27, 5} → ______
- Prime numbers in {21, 23, 2, 17, 12, 27} → ______
- Prime numbers in {11, 8, 25, 17, 19, 3} → ______
- Prime numbers in {25, 11, 29, 5, 27, 8} → ______
- Prime numbers in {13, 3, 5, 29, 2, 9} → ______
- Prime numbers in {3, 12, 15, 2, 23, 7} → ______
- Prime numbers in {23, 21, 17, 7, 11, 12} → ______
- Prime numbers in {2, 11, 3, 12, 7, 21} → ______
- Prime numbers in {13, 2, 19, 3, 11, 23} → ______