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