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