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