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