Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 515: | \[{9^{515}-1\over8}\] | 112 × 61 × 619 × 1031 × 3490445461 × 3661040653 × 13904017381<11> × 1535090713229126909942383374434289901<37> × 6957596529882152968992225251835887181478451547013<49> × 81390061154901040915047190963509493467072953179621<50> × 77104115792306847773969759123947639401032809855965933396877513801<65> × 2283855864616538319188501894078270917939970969131804770999352122148044707782348310208944420760967216707417196548630820741<121> × 265583586915553954689927748193653317513152426592838510814462459025354527744076607109173885844248007550245844534973452272001013120031<132> |