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