Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 206: | \[{17^{206}-1\over16}\] | 2 × 32 × 619 × 1031 × 2943067227661610024320481<25> × 2928719479725167021598188503541<31> × 2045745317855197068998380700573793154366295127535115833<55> × 55022348595136096544254652924646022747373184719767753882473202817<65> × 166443696917018148599711150670340452472359763769837566202297165170932079<72> |