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