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