Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 275: | \[{8^{275}-1\over7}\] | 23 × 31 × 89 × 151 × 601 × 881 × 1801 × 3191 × 100801 × 201961 × 599479 × 10567201 × 702948566745151<15> × 9115784422509601<16> × 382027665134363932751<21> × 2048568835297380486760231<25> × 4074891477354886815033308087379995347151<40> × 4108316654247271397904922852177568560929751<43> × 101249241260240615605217612230376981800142669401<48> |