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