**NOTE:**this may not work on international number if you have over 7 digits...

Get your calculator or start calc on your PC: Start/Run/calc and then follow the steps below:

1. Key in the first three digits of your phone number

(NOT the area code)

2 Multiply by 80

3. Add 1

4. Multiply by 250

5. Add the last 4 digits of your phone number

6. Add the last 4 digits of your phone number again.

7. Subtract 250

8. Divide number by 2

Do you recognize the answer?