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