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