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