Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 388: | \[{16^{388}-1\over15}\] | 17 × 257 × 389 × 971 × 1553 × 3881 × 4657 × 5821 × 11447 × 31817 × 782209 × 25507121 × 3555339061 × 4959325597<10> × 372454540993<12> × 394563864677<12> × 2125457487809<13> × 17637260034881<14> × 1100876018364883721<19> × 20468009784290989308737<23> × 13842607235828485645766393<26> × 274544401673356635075368632379880469997576189095365919517662917268897<69> × 1453877963178138896046426642058339479766721357185952218845250161520480654019427312503941108372323925802584001<109> × 444433511677136809473389020326032900389981845198866371642512028966604985027148489582655667389511571975495797793<111> |