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