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