Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 558: | \[{15^{558}-1\over14}\] | 24 × 19 × 211 × 241 × 311 × 541 × 739 × 811 × 3907 × 4651 × 16741 × 21061 × 49663 × 427429 × 958459 × 22041001 × 12871001296201<14> × 14572134604887829<17> × 660603097954354915026956925328631<33> × 54121063424341253194170305920478143<35> × 8430032843479545087405985065664262044587757343176483519553882603491<67> × 34327408553153235877683920788486912324029949838354936279201903283843361<71> × 282666181122365321800948478238350737044801552245890801008799594459033093819595357615249503338564056899411141811373473401046595374693685945962602603560439801873544047<165> × [5277885835687095566237380555235377412483585451610799813367527512465432121484109581195085271059314118529840054059029653767066192648959676325036498868698630728513223322276717281653936426517512886857669<199>] |