View Single Post
Old 2018-10-26, 12:01   #4
ATH
Einyen
 
ATH's Avatar
 
Dec 2003
Denmark

54428 Posts
Default

Neither 8627 nor 256765423 is a factor of 173*2^1798220-1, so it must have been p=2215115304211 as axn pointed out.
ATH is offline   Reply With Quote