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