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