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