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