## Jenny Jenny prime puzzle

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• I posted this (shortened) to Twitter tonight: (I m https://twitter.com/aeliasen ) I got this phone number from a girl named Jenny tonight. Her 7-digit number
Message 1 of 2 , Apr 18, 2012
I posted this (shortened) to Twitter tonight: (I'm

I got this phone number from a girl named Jenny tonight. Her 7-digit
number is 867-5309. She hinted that it's prime and her number plus 2
are twin primes. Yet I don't know her (3-digit) area code in the U.S.!
Where could she live?! How many places might you expect mathematically
and how many places might she really live?

Note that in the U.S., area codes may not start with 0 or 1. These
are 3-digit numbers that precede the 7-digit local phone number, giving
a 10-digit number.

She also hinted that her 10-digit number with area code and that
number plus 2 are are also twin primes! Could you tell me now where she
might live?

--
Alan Eliasen
eliasen@...
http://futureboy.us/
• North Carolina or Virginia.
Message 2 of 2 , Apr 20, 2012
North Carolina or Virginia.

--- In primenumbers@yahoogroups.com, Alan Eliasen <eliasen@...> wrote:
>
>
> I posted this (shortened) to Twitter tonight: (I'm
>
> I got this phone number from a girl named Jenny tonight. Her 7-digit
> number is 867-5309. She hinted that it's prime and her number plus 2
> are twin primes. Yet I don't know her (3-digit) area code in the U.S.!
> Where could she live?! How many places might you expect mathematically
> and how many places might she really live?
>
> Note that in the U.S., area codes may not start with 0 or 1. These
> are 3-digit numbers that precede the 7-digit local phone number, giving
> a 10-digit number.
>
> She also hinted that her 10-digit number with area code and that
> number plus 2 are are also twin primes! Could you tell me now where she
> might live?
>
> --
> Alan Eliasen
> eliasen@...
> http://futureboy.us/
>
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