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