30 Dec
2005
30 Dec
'05
12:50 p.m.
Richard Guy said: n 31 32 33 34 35 36 37 M 216091 756839 859433 1257787 1398269 2976221 3021377 g 31.6 34.8 35.1 36.1 36.4 38.3 38.3 n 38 39 40 41 42 43 M 6972593 13466917 20996011 24036583 25964951 30402457 g 40.5 42.2 43.2 43.7 43.9 44.3 Me: In the entry A000043 I have a comment that says that 13466917 IS the 39-th Mersenne prime. But is it really known that 20996011 is the 40th? In other words, how far has the exhaustive search been taken? I looked at the GIMPS page but could not (easily) see the answer. Neil