Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 225: | \[{31^{225}-1\over30}\] | 32 × 52 × 11 × 101 × 151 × 271 × 331 × 2521 × 3637 × 4951 × 8101 × 11701 × 17351 × 63901 × 81343 × 106291 × 13277801 × 327412201 × 20235942281002951<17> × 997936488044528101<18> × 337048683633480845467801<24> × 2994938361626916310097900969699892125851<40> × 2064255287371978418499841280594690845729046406705514947248358751<64> × 469762389425860566339831150377891857160104326935768573018867997170753288712894089692091883354002754486543751<108> |