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