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Old 2020-02-06, 08:02   #1921
diep
 
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Sep 2006
The Netherlands

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Quote:
Originally Posted by paulunderwood View Post
69*2^6639971-1 is prime! (1998833 decimal digits) Time : 2777.921 sec.

This prime has taken many years for Vincent and me to find, but, oh boy, is it worth it!



3x HURRAY!!!
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