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