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