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