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