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