Base 27 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 247: | \[{27^{247}-1\over26}\] | 13 × 229 × 313 × 1597 × 6553 × 7333 × 14327 × 248749 × 363889 × 797161 × 1824179209 × 50427403417<11> × 50473626669819633853<20> × 85336889516918333646696709<26> × 123634978316170336137330788562343247835605751304272686452015331<63> × 3741261784919408991495475646773739905202290308113651215817361762514592562684067834008457827995293074870504868197700396671918239045339429560255710765870348189399049590547089684001385991157<187> |