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