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