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