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