Thursday, October 2, 2008

Cool And Useless Trick

Ok some math geek have figured out the way to find you 8 digit landline number , you only need to provide first 4 and last 4 digits to him :) .

Following is how you do it

Grab a calculator. (you won’t be able to do this one in your Head)

1. Key in the first four digits of your landline phone number (NOT the
Area code ...)
2. Multiply by 80
3. Add 1
4. Multiply by 250
5. Add to this the last 4 digits of your phone number
6. Add to this the last 4 digits of your phone number again.
7. Subtract 250
8. Divide number by 2

Do you recognize the answer ??


A pretty useless thing but some one have surely put in a lot of effort to some up with this cool trick

7 comments:

  1. Can You show me a phone number as an example, please? I'm not from the US so this doesn't work in my country. :P

    ReplyDelete
  2. If you have to give him the first 4 numbers and the last 4 numbers of your phone number, he's already got your number so you don't have to do the math.

    ReplyDelete
  3. To the first poster...just pick any 7 digit number XXX-XXXX

    ReplyDelete
  4. @ 2nd anonymous ... that's why it is called useless :), but somebody still made some effort in creating this.

    ReplyDelete
  5. Step one should be:
    Key in the first THREE digits of your landline phone number (NOT the
    Area code ...)

    ReplyDelete
  6. This could be a Mexico City joke, where one of the competing local phone companies used 8 numeral phone numbers.

    ReplyDelete

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