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