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