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