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