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