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