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