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