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