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