- First, pick any 7-digit telephone number. For example — 567-1234
- Now, punch in the first 3 digits of the number you chose
- Multiply the number by 80
- Add 1 to the result
- Now, multiply that answer by 250
- Now, add the
*last*four digits of your telephone number to the result from Step 5 - Add the last four digits of your telephone number
*again* - Subtract 250 from your result
- Now, divide the number by 2
- You should now end up with the number you chose