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