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