Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 506: | \[{25^{506}-1\over24}\] | 2 × 13 × 232 × 47 × 67 × 89 × 1013 × 5281 × 8971 × 2453089 × 12207031 × 215556321311<12> × 332207361361<12> × 390782201041<12> × 1030330938209<13> × 42272797713043<14> × 9170844677823637140641<22> × 5575108032738819112514182889<28> × 5465713352000770660547109750601<31> × 4586605887769406257148888900423581<34> × 75458741165755163938354406143932160485170968091<47> × 63639858661524160076707327760542007934944636560107530801798041<62> × 792354594195568565297313789020300100241616756754114980755845049659473252114054341357731910108675821183384311348946372430040850204947728933967<141> × 288303471123669048345727182426754747742981517146876622682144195081851651721693925389806451742636164158656048507320903349993970541773267274271121067733133648553848258005263700294112523644353452297021350265211371764739200671196678323429759721177569957<249> |