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