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