Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 357: | \[{15^{357}-1\over14}\] | 7 × 43 × 103 × 239 × 241 × 953 × 1123 × 2143 × 1022449 × 1743463 × 3496561 × 6253927 × 1045002649 × 6734509609<10> × 2817034275427<13> × 54828245908127393269<20> × 97406069823939953821<20> × 5959450412463189882124530500947<31> × 6002089885168243417019997239237162279316530053752412376566490597702105104474079032397707<88> × [86491827118854337879065583635869341039420725170497950567630416164803370210246366832883452658772836694228574079609259174667625872086501780542792463202095361974561323088706618883781958323<185>] |