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