Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 285: | \[{16^{285}-1\over15}\] | 3 × 5 × 7 × 11 × 13 × 31 × 41 × 61 × 151 × 191 × 229 × 331 × 457 × 571 × 761 × 1321 × 2281 × 32377 × 54721 × 131101 × 160969 × 174763 × 185821 × 247381 × 524287 × 525313 × 1101811 × 1212847 × 160465489 × 420778751 × 3996146881 × 30327152671<11> × 275415303169<12> × 1457772869697961<16> × 276696631250953741<18> × 2416923620660807201<19> × 3011347479614249131<19> × 1491477035689218775711<22> × 23480412082098913326841<23> × 25349242986637720573561<23> × 64326196787727903551977150861<29> × 15653990705896313547269237220041169361<38> |