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