Prime Number Calculator

How to Use the Prime Number Calculator

This guide will help you effectively use the Prime Number Calculator, which provides features such as checking if a number is prime, finding the next or previous prime number, and listing prime factors, among others.

Step 1: Enter a Number

To begin, identify the number you want to check for primality.

• Location: Locate the field labeled Enter a Number.
• Input: Enter a positive integer within the range of 1 to 1,000,000. This input is mandatory.
• Placeholder: Use the placeholder that prompts you with “Enter a positive integer”.

Step 2: Define a Range

If you are interested in discovering prime numbers within a specific range, you can define this range with a start and end number.

• Range Start: Locate the field labeled Range Start.
• Range End: Locate the field labeled Range End.
• Input: Enter integers within 1 to 1,000,000 for both fields, making sure the Range End is greater than or equal to the Range Start. These inputs are required for the range functionality.

Step 3: Obtain Results

After entering the number and/or defining a range, you can now view the results provided by the calculator.

• Is Prime Number?: The calculator checks if the entered number is a prime number, displaying “Yes” or “No”.
• Next Prime Number: It computes and displays the next prime number following your entry.
• Previous Prime Number: It determines and shows the preceding prime number before your entered value.
• Number of Primes in Range: Displays the count of prime numbers found within the specified range.
• Prime Factors: Lists the prime factors of the entered number, formatted as a sequence of numbers within square brackets.

Conclusion

By following these steps, you can quickly and accurately use the Prime Number Calculator to work with prime numbers, identifying, counting, and breaking them down into their prime factors.