mersenneforum.org - View Single Post - interesting P-1 result

bsquared · 2007-05-06, 20:21

hmm, evidently not that uncommon. I just found another one (I swear I'm not constructing these!)

B1=10^7, B2=10^9 on 708^78-1 give a C69 = P35*P35 =
15841128423127506659651289760017421*
15885940667605943736481986477867541

P-1 = 2.2.3.5.7.13.29.31.59.67.101.223.241.2251.3457.13729.1407829

Q-1 = 2.2.3.5.13.29.31.59.67.223.241.709.2251.3457.13729.1407829

differing by a factor of 709/707

- ben.

2007-05-06, 20:21	#2
bsquared "Ben" Feb 2007 E33₁₆ Posts	hmm, evidently not that uncommon. I just found another one (I swear I'm not constructing these!) B1=10^7, B2=10^9 on 708^78-1 give a C69 = P35P35 = 15841128423127506659651289760017421 15885940667605943736481986477867541 P-1 = 2.2.3.5.7.13.29.31.59.67.101.223.241.2251.3457.13729.1407829 Q-1 = 2.2.3.5.13.29.31.59.67.223.241.709.2251.3457.13729.1407829 differing by a factor of 709/707 - ben.