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Old 2016-06-25, 01:57   #353
pepi37
 
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After milion nines:)

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Quote:
Originally Posted by pinhodecarlos View Post
61*2^3286535-1 is prime! (989348 decimal digits) Time : 2988.479 sec.
[Elapsed time: 49.82 minutes]

http://primes.utm.edu/primes/page.php?id=121820
It is near mega prime!
Good work!
congratulations
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Old 2016-06-25, 04:02   #354
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k=61 is reserved by RPS.
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Old 2016-06-25, 08:00   #355
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Quote:
Originally Posted by pinhodecarlos View Post
k=61 is reserved by RPS.
Sure, but he (R.K.E.) probably doesn't know that...

Since we do not know where he started from (e.g. it's possible that he only tested above n=3M), I would vote to keep k=61 in the test files.
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Old 2016-06-25, 08:01   #356
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2600-2650 complete (one prime).

Taking 2650-2680.
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Old 2016-08-21, 08:18   #357
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2650-2680 complete, no primes.
Taking 2680-2750.
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Old 2016-09-25, 09:30   #358
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2680-2700 complete, no primes.

Also taking 2750-2800.
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Old 2016-11-19, 14:36   #359
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2700-2750 complete, no primes.

Taking 2800-2850.
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Old 2016-12-18, 10:10   #360
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2750-2800 complete, no primes.

Taking 2850-2900.
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Old 2017-01-19, 10:06   #361
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2800-2850 complete, no primes.

Taking 2900-2950.
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Old 2017-01-30, 12:10   #362
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January 30, 2017: 61*2^3366033-1 Ruediger K. Eckhard
http://primes.utm.edu/primes/page.php?id=122811
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Old 2017-01-30, 12:35   #363
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Quote:
Originally Posted by pinhodecarlos View Post
January 30, 2017: 61*2^3366033-1 Ruediger K. Eckhard
http://primes.utm.edu/primes/page.php?id=122811
What a nice coincidence: 61*2^2936967-1 is prime! (884117 digits)
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