Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 387: | \[{31^{387}-1\over30}\] | 32 × 331 × 3637 × 21673 × 44119 × 81343 × 1190671 × 2557632691 × 146982701137<12> × 5408368622183010019<19> × 3049055684506560663410351046998584180840895763387409<52> × 28268213368244207021067545104813760525436762850832706185611685178643757376267942042333476824202437189<101> × [2721130702181226256861240432289708993594419790810702710479215768034668140469783196357083925108337594237793224330661411862743413960264273703789930164745162988513080960033789704153355676804515843669611633918997663182659370097364080783652502546101202967329260514918289494555843125496089316103513603158842497595221578984491117525242432053110961274665560246415093<358>] |