Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 374: | \[{31^{374}-1\over30}\] | 25 × 23 × 103 × 397 × 617 × 1123 × 1871 × 757241 × 150332843 × 1048563011 × 8752362848923<13> × 6841661642646463343047<22> × 751670559138758105956097<24> × [4356665611624125101583391738389750671572911800300705632969773497644887846731845662046925736610538793476833919088715987233623889628850721517282212641540624284641379185380711284556825824733301326852974231256038768687288785169<223>] × 21456396540160141838908865626502780875977388849762498021756115870151291586776108565721071342055989763465195522107778580483920819437613636331636258886723467893662053111240783939105090415542575670234934093807735600629586208732240038656431<236> |