Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 492: | \[{15^{492}-1\over14}\] | 25 × 13 × 83 × 113 × 211 × 241 × 1723 × 3877 × 27061 × 73535551 × 3785307289 × 138583022521<12> × 2395102299169<13> × 8430332222527<13> × 30839158009109<14> × 92923320642619<14> × 114557014359607<15> × 1391592549357733<16> × 8651199977283439<16> × 1296290182141167360809609737147<31> × 1543059974108956456650786169201<31> × 14052995136749824817978552692323583<35> × 1845777960594336714787070327610292433909<40> × 1248945668780874865467604288287146622876086867<46> × 44612545556379601866218236511065863857423885983<47> × 8150017155618489012720059546135582435491524581730391<52> × [11901180124006421411310457193924985825541776297918808059991625193168737989532027059182613444960170885306691258659173271054315661769176351951820874551317<152>] |