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Old 2020-03-16, 22:29   #199
paulunderwood
 
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Sep 2002
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Quote:
Originally Posted by JeppeSN View Post
What ranges was Propper searching, and did he keep the residues of all the composite candidates he must have covered? This information could be useful to PrimeGrid which is planning to search and double-check (at least a part of) these Proth number regions, see https://www.primegrid.com/stats_div_llr.php.

/JeppeSN
pm ryanp

Last fiddled with by paulunderwood on 2020-03-16 at 22:31
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Old 2020-03-24, 19:15   #200
pepi37
 
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Dec 2011
After milion nines:)

100110001012 Posts
Default New near-repdigit prime :)

93*10^642225-1 :)


https://primes.utm.edu/primes/page.php?id=130796
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Old 2020-03-24, 20:09   #201
paulunderwood
 
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Congrats!
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Old 2020-03-24, 20:32   #202
pepi37
 
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After milion nines:)

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Congrats!
Thanks!
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Old 2020-03-30, 13:04   #203
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Originally Posted by paulunderwood View Post
Congrats to Ryan Propper for his recent batch of proth mega primes for k = 9, 11 and 13 the largest of which has 3,462,100 digits
Go, Ryan, go. The latest is 28th biggest known prime with 3,734,847 digits:

9*2^12406887+1
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