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