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Semiprime and n-almost prime candidate for the k's with algebra for the Sierpinski/Riesel problem
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2018-12-14, 21:35
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sweety439
Nov 2016
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Originally Posted by
sweety439
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https://mersenneforum.org/showpost.p...&postcount=281
, the conjectured k's for R4 are 361, 919, 1114, ..., and the conjectured k's for R10 are 334, 1585, 1882, ... and we can prove them.
Note that for R10 k=343, we should find an n such that (7*10^q-1)/3 and (49*100^q+7*10^q+1)/3 are both primes (the status of R10 k=343 is like the status for S63 k=3511808 and S63 k=27000000).
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