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