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