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