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