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