Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 325: | \[{3^{325}-1\over2}\] | 112 × 131 × 8951 × 391151 × 797161 × 3701101 × 110133112994711<15> × 217520261488056211634951<24> × 27612401161496267925537524217847751<35> × 535434479268147803380664430887701402848403348378116486001<57> |