Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 201: | \[{8^{201}-1\over7}\] | 73 × 1609 × 22111 × 193707721 × 761838257287<12> × 87449423397425857942678833145441<32> × 648168721774409511378116151410898673195879<42> × 218296778680424803757800688187260042629442091157587489529855230993806344506271<78> |