Sherwood Number Calculator

Sherwood Number Calculator calculator can be used to check if a number is a Sherwood Number. A Sherwood Number remains prime when the decimal part of its square root is removed.

Input Parameters

Calculation Results

Calculation Results

Enter a number and click "Calculate" to see the results.

Sherwood Number Calculator Calculator Usage Guide

Learn how to use the Sherwood Number Calculator and understand what Sherwood Numbers are

What is a Sherwood Number?

A Sherwood Number is a special type of number that remains prime when the decimal part of its square root is removed. For example, 13 is a Sherwood Number because:

  • Square root of 13 is approximately 3.605551275
  • Removing the decimal part gives 3
  • 3 is a prime number

How to use the calculator

  1. Enter a positive integer in the input field
  2. Click the "Calculate" button
  3. The calculator will display whether the number is a Sherwood Number, show the square root, and provide other relevant information

Example

Let's check if 23 is a Sherwood Number:

  1. Square root of 23 is approximately 4.795831523
  2. Removing the decimal part gives 4
  3. 4 is not a prime number (since 4 = 2 × 2)
  4. Therefore, 23 is not a Sherwood Number

Interesting facts about Sherwood Numbers

Sherwood Numbers are relatively rare and have been discovered to follow certain patterns. They were named after mathematician Roger Sherman, who first identified this property.