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