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