Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 385: | \[{15^{385}-1\over14}\] | 7 × 112 × 67 × 71 × 463 × 2333 × 4931 × 5237 × 8537 × 1011671 × 1743463 × 4167731 × 7324210887841<13> × 28095816025663<14> × 133074872865551<15> × 53096945644422356461<20> × 9273757272736041033417670310849312570581<40> × 233231979450578549516941109533238047237736577451339331<54> × [2009129459998633788932571261760210805014044091359137168408035825253212004701397273388018168908844969721890014223822946414511122958611872303772001897629064724891000460860178785375917909695541303115985953742935137896652025680537855130212414116223348121422351<256>] |