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