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