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