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