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