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