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