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