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