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