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