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 {21, 12, 9, 29, 13, 15} → ______
- Prime numbers in {29, 2, 19, 25, 23, 11} → ______
- Prime numbers in {9, 15, 25, 12, 7, 23} → ______
- Prime numbers in {15, 2, 9, 5, 7, 17} → ______
- Prime numbers in {29, 15, 2, 25, 9, 27} → ______
- Prime numbers in {5, 11, 27, 13, 25, 23} → ______
- Prime numbers in {25, 3, 8, 5, 13, 9} → ______
- Prime numbers in {29, 12, 13, 17, 8, 25} → ______
- Prime numbers in {3, 25, 27, 19, 29, 7} → ______
- Prime numbers in {5, 9, 12, 27, 2, 15} → ______
- Prime numbers in {27, 11, 7, 13, 15, 21} → ______
- Prime numbers in {11, 17, 12, 9, 7, 2} → ______
- Prime numbers in {7, 27, 21, 29, 17, 12} → ______
- Prime numbers in {17, 7, 19, 12, 8, 9} → ______
- Prime numbers in {15, 9, 21, 27, 19, 13} → ______
- Prime numbers in {11, 5, 27, 17, 12, 3} → ______
- Prime numbers in {11, 19, 23, 12, 29, 5} → ______
- Prime numbers in {9, 19, 13, 12, 3, 7} → ______
- Prime numbers in {23, 25, 9, 27, 8, 17} → ______
- Prime numbers in {9, 27, 15, 3, 13, 5} → ______