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