20180116, 02:59  #155 
Sep 2002
Database er0rr
110001000100_{2} Posts 
Congrats to Serge for two Sophie Germain pairs:
10429091973*2^1351351 10429091973*2^1351361 13375563435*2^1371361 13375563435*2^1371371 
20180412, 19:22  #156 
Dec 2011
After milion nines:)
3·11·37 Posts 
And another nearrepdigit prime
http://primes.utm.edu/primes/page.php?id=124582 92*10^8338521 is prime! 
20180907, 20:49  #157 
Dec 2011
After milion nines:)
3×11×37 Posts 
31521*2^17788991 (before 3 years) and today 663251*2^1778899+1 :)

20181011, 13:53  #158 
Dec 2011
After milion nines:)
1221_{10} Posts 
And today
84256*3^1778899+1 is prime! (848756 decimal digits) Time : 1329.140 sec. 
20181013, 00:28  #159 
Dec 2011
After milion nines:)
3·11·37 Posts 
After day and half
45472 *3^17788991 is prime! Now I have "pair" on base 2 and base 3 Hunt for primes on base 5 has started 
20190128, 13:21  #160 
Dec 2011
After milion nines:)
1221_{10} Posts 
Verification of new mega repdigit prime is started :)
But I am pretty sure it will be confirmed :) 
20190128, 20:42  #161 
Dec 2011
After milion nines:)
2305_{8} Posts 
https://primes.utm.edu/primes/page.php?id=125948
93 · 10^^{1029523}1 is prime After nearly 2.5 years from my last mega ( also ) nearrepdigit prime From last mega prime to this mega prime I process only 9284 candidates :) If we take some average number of candidates for one mega prime (38000 on 1e15 as sieve depth) , I was very lucky since I found two in this range. Last fiddled with by pepi37 on 20190128 at 21:07 Reason: add more info 
20190130, 13:56  #162  
Sep 2002
Database er0rr
2^{2}×5×157 Posts 
Quote:


20190130, 14:25  #163 
Dec 2011
After milion nines:)
3·11·37 Posts 

20190215, 01:39  #164 
Sep 2002
Database er0rr
2^{2}×5×157 Posts 
Last fiddled with by paulunderwood on 20190215 at 01:40 
20190215, 02:23  #165 
"Serge"
Mar 2008
Phi(3,3^1118781+1)/3
21432_{8} Posts 
But wait...!

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