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