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