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