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