Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 394: | \[{31^{394}-1\over30}\] | 25 × 8669 × 32309 × 276589 × 4478993 × 4499087 × 803424450162799<15> × 4040362574645024503<19> × 27400346068326932381<20> × [24707218426595892477399875902952295623620990539423637547434591119910641871077106389202566670141713583642794072854412138461629757594332566573915935871571958994748993077509270205530661001176333786403956901317226974918842215972262113<230>] × [119910897250425855624301491095295134077259872656088714279692785555486612758241028801156968170889334093187349896641357610599118569230431486379992556334587521856769123315469711902906062612441834499231889414946725516037424727661750334282773149994004013343028358382441500508409163<276>] |