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