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