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