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