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 2021-02-27, 07:35 #1214 sweety439   Nov 2016 2,819 Posts Riesel base 184 Code: 1,16703 2,1 3,6 4,(partial algebra factors) 5,1 6,1 7,32 8,1 9,(partial algebra factors) 10,1 11,15 12,1 13,1 14,8 15,2 16,21 17,2 18,2 19,10 20,2 21,1 22,7 23,1 24,8 25,5 26,1 27,1 28,85 29,2 30,1 31,1 32,2 33,2 34,6 35,2 With CK=36 k=1 prime given by generalized repunit prime search All k where k = m^2 and m = = 2 or 3 mod 5: for even n let k = m^2 and let n = 2*q; factors to: (m*184^q - 1) * (m*184^q + 1) odd n: factor of 5 This includes k = 4, 9 Conjecture proven