Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 497: | \[{3^{497}-1\over2}\] | 1093 × 3984424151 × 432547838166529<15> × 1309567972706389369<19> × 428692823469180744251<21> × 13872998573921896220953<23> × 3754733257489862401973357979128773<34> × 785010913523701739507985671014620709<36> × 15570922542324295343279839765067813944582738042872258948974931245211402779405977<80> |