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