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