Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 525: | \[{31^{525}-1\over30}\] | 3 × 52 × 11 × 43 × 101 × 151 × 331 × 421 × 2521 × 4951 × 6301 × 17351 × 319061 × 13277801 × 161408801 × 203633641 × 316521451 × 327412201 × 917087137 × 2813432694367<13> × 20235942281002951<17> × 63337748513662351<17> × 997936488044528101<18> × 9240957640390889951861<22> × 39849234924648425393072876341<29> × 2994938361626916310097900969699892125851<40> × 23707462166621201930562854073708336673561<41> × 33775584211871844736421714817378301699484684689901<50> × 91502426625510589592547533359706080563661406250335170247851<59> × 184264024441474386358438553752549849968905326483369584139740751<63> × [421444864501163465391264526621662977820411833866505913934304151924173134637518282855914098823505216746972685094102763198006621504575351798115040689449889266988832297333102217847499249842598083848573728998474640435980121647738476190671373803937940388649383835151962175304084610103572659172937024887831635398976476216673650353727068301<333>] |