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