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