Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
109: | \[{17^{109}-1\over16}\] | 2399 × 25433824402380432988461050283974738838510040104186488783881902809<65> × 134700910421215223274889759553545746360536401580001277417261258891<66> |