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