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