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