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