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