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