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