Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 393: | \[{15^{393}-1\over14}\] | 241 × 787 × 149341 × 351343 × 8310543061<10> × 225909282151193<15> × 2672726277852351048400401941685857214023231112663546845790173<61> × 166459634738560254451837528673170712725691997899058351345139297727929<69> × [13740664549030221608373504161934065669333008506374077892883294293648120259566999920496812699345013163619767147600142170952731937067601173916598472502968995344296610044824888977760514300914738758409307016160144356770221820045302273797937788552572104665816802695639864402631186392046289474137081<293>] |