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