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