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