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