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