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