I found on http://www.prothsearch.net/fermat.html that 84977118993*2^ {520} + 1 | 2^{2^517}+1. Can this result be verified by Sage?
sage: mod(2^(2^517)+1,84977118993*2^520+1) --------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) /home/jaakko/Matikka/sage-4.2.1-linux-Ubuntu_9.10-i686-Linux/<ipython console> in <module>() /home/jaakko/Matikka/sage-4.2.1-linux-Ubuntu_9.10-i686-Linux/local/lib/ python2.6/site-packages/sage/rings/integer.so in sage.rings.integer.Integer.__pow__ (sage/rings/integer.c:12061)() RuntimeError: exponent must be at most 2147483647 -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org