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