Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 291: | \[{23^{291}-1\over22}\] | 7 × 79 × 37831 × 437083 × 504573631 × 376645117339<12> × 435595075102951<15> × 51812854978687267<17> × 3386411916070322600972917793132149<34> × 8929627332642360651429171750713187394279772739059800673754915869984108776013899856074320524951418926918437903<109> × [70192423547174958115356450185440569775924885968368092817382451062038725967917540153915406769501601339046877497004371605984729747101109735050531714566243756748695320907900445080227768546327<188>] |