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