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