The Artin's Constant. = product(1-1/(p**2-p),p=prime) Reference : Wrench, John W., Jr. Evaluation of Artin's constant and the twin-prime constant. (English) Math. Comp. 15 1961 396--398. --------------------------------------------------------------------- Here go the first 500 digits of Artin's constant. The computation took less than 1 hour on my 200MHz PPro computer (I used Mathematica). 0.3739558136 1920228805 4728054346 4164151116 2924860615 ... 0042094742 8024173501 8204002808 2344304317 0872505689 ... 8160390668 4726306892 1640638988 1021724882 1424051164 ... 8074688474 7324461903 1609837563 0506508175 2073976458 ... 8761611346 1048855771 0895423001 5685939308 6151982192 ... 9642278412 6532125244 4663552136 3916653214 8577760847 ... 7705756141 0656179074 7673010180 1523834700 9790129415 ... 8593449704 5575775038 2612841187 1699428102 8142115314 ... 2036264703 5561313319 4729563146 9607736716 4069529268 ... 5221641398 8130891984 9653905380 2835139841 9853215378 Best regards, Tom\'as Oliveira e Silva http://www.inesca.pt/~tos ----------------------------------------------------------------------- # This is the electronic signature for Plouffe's Inverter # # Ceci est la signature électronique pour l'Inverseur de Plouffe # # Copyright : Simon Plouffe/Plouffe's Inverter (c) 1986. # # http://www.lacim.uqam.ca/pi #