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