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