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