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