Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 333: | \[{31^{333}-1\over30}\] | 32 × 149 × 223 × 331 × 3637 × 4219 × 15541 × 81343 × 90649927 × 200529937 × 205058071 × 152597832677<12> × 257803457371<12> × 386626708057<12> × 52812493022953<14> × 66685632043094378655582637553641418149167535516828458801415092872326088347774211129187093655702612867<101> × [3653320267742006348664684686529045953319179739918963400808957697057805656638589814176846637107108046894967783121695601770640462736840404223984215817479411940372064995450038102747670253006662829905364196745151005586956189626877640437573595153932825198569342767934473244050793911359249187033260301329<298>] |