Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
115: | \[{17^{115}-1\over16}\] | 47 × 88741 × 335430126425379392951<21> × 1070187968644717154676571<25> × 26552618219228090162977481<26> × 4990158249781591112023434661584357366578306705698456598155502981<64> |