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