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