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