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