Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 237: | \[{19^{237}-1\over18}\] | 3 × 127 × 10429 × 32233 × 1380763 × 698986471 × 39848579602213<14> × 12577647923565067982570531255067267090413921105116610018487966576192735681081030635731<86> × [1040548576079043741166451939663659042517266064882813789092577551718576409997763813415561614812314585071981610397613103431696298615003863328001285732234645881861037016431915722067<178>] |