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