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