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