
View Poll Results: I could search for special nbit digit prime ktuplets...Is there interest ?  
Yes  3  60.00%  
No  2  40.00%  
Voters: 5. You may not vote on this poll 

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20230828, 21:09  #34 
"Alex_soldier (GIMPS)"
Aug 2020
www.Mersenne.ru
2×3×7 Posts 
Forms of ktuplets: Repdigit powers
Hello, Norman.
Would you be interested in ktuplets in the form of (b^N...N + C + d) where N...N  repdigit ? (I collect and work on some types of primes with one of the parameters = repdigit) 
20230829, 03:30  #35 
"Norman Luhn"
Jan 2007
Germany
769 Posts 
I collect prime ktuples, so I could take these from you.
b^(N..N)+C is quickly exhausted though ! For b=2 and b=10 some ktuples are known so far. This prime quadruplet "2^11111+X+d,d=0,2,6,8" is possible, but will take 6+ months. Last fiddled with by Cybertronic on 20230829 at 03:31 
20230918, 03:11  #36 
"Norman Luhn"
Jan 2007
Germany
1100000001_{2} Posts 
megabit

20230922, 15:39  #37 
"Norman Luhn"
Jan 2007
Germany
1100000001_{2} Posts 
6000bit quadruplet
Smallest 6000 bit prime quadruplet is known.
2^5999+87059009309433+d, d=0,2,6,8 Proven primes via Primo 3.0.9 Last fiddled with by Cybertronic on 20230922 at 15:41 
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