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