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