On Jan 15, 2009, at 4:57 PM, [email protected] wrote: > In a message dated 1/15/2009 7:53:24 P.M. Eastern Standard Time, > [email protected] writes: > It wasn't. 2^3021377-1 is the third largest known and the next two > larger are > only slightly bigger. > I was calculating M37 which is the largest known Mersenne less than > 10^6 digits long. > > www.mersenne.org (GIMPS) is up to M46 which is over 12*10^6 digits > long!
Even then sage: n = 43112609 sage: time m = (2^n - 1) CPU times: user 0.01 s, sys: 0.01 s, total: 0.02 s Wall time: 0.02 s sage: time s = str(m) CPU times: user 37.57 s, sys: 1.41 s, total: 38.98 s Wall time: 39.40 s sage: len(s) 12978189 Of course, these latest Mersenne primes aren't known to have been discovered in order. - Robert --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en -~----------~----~----~----~------~----~------~--~---
