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