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