WA0UWH - Electronics & HAM Radio Blog

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The New Largest Prime Number Found

Posted: 23 Jan 2016 07:29 AM PST
http://feedproxy.google.com/~r/Wa0uw...ber-found.html

UPDATED:
Added Details and Links

Recently (Jan 7. 2016) the next and Largest Prime Number has be found (so
far), it has about 22 Million Digits long, See, YouTube at:
https://goo.gl/C7ngE7.

The number can be expressed as a small-simple math function, that
is: "2^74207281-1"

The previous Large Prime Number (17 Million Digits) was found about 3 years
ago on Jan 25, 2013, see: http://goo.gl/UbAWK0

Hopefully, and if history hold true, we will see the next Largest Prime
sometime within the next 3 to 5 years.

Just for fun, I decided to see how long it would take my 3.4GHz Workstation
to perform the calculation and print the full 22 Million Digits to the
screen - it took about 154 minutes - it was like watching paint dry. :-)

Note: To verify that it "is actually prime" would probably take several
months (or more) on my computer.

Here is the linux command that I used to print this New Prime, and a few of
the Beginning and Ending Digits of the results:



$ time echo "2^74207281-1" | bc
30037641808460618205298609835916605005687586303030 148484394169334554
77232190679942968936553007726883204482148823994267 278352907009048364
32218015348199652241372287684310213386284573666361 506667532122772859
35986405778025687564779586583214205117110963584426 293657265038724071

..
. ( 22 Million More Digits )