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