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