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