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