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