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