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