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