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