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