Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 505: | \[{31^{505}-1\over30}\] | 5 × 11 × 4243 × 17351 × 73529 × 1008991 × 518115053 × 9563980073<10> × 38204753891<11> × 184896218298923<15> × 1599299999412037121<19> × 6145948034804591621<19> × 44399993518101033919<20> × 6965822215923508571538755599577162898921806181418861400219107585112491<70> × 1431671986031931777398839919602297504445924349925885131343377168852356029432347217185473576240087496651069087638075568061237140694159993121576828794479245227698321592885589366970734368999430679054043986326069600775483077227600809561813010307600625184754079318807194919847898313587243695398308386948193946173136492445332823489899912827896277291139511337223398067879095299631542066654607488778351526191080495106656534767934143791305908782421446064285707519148363260094225831622866079532826715837223684928646494387081541895642698253768240593339266517314946953262801<562> |