Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 570: | \[{15^{570}-1\over14}\] | 24 × 11 × 31 × 61 × 191 × 211 × 229 × 241 × 571 × 1531 × 2281 × 2851 × 4561 × 4931 × 13681 × 13757 × 19231 × 142111 × 4272113 × 37844581 × 39225301 × 292582141 × 65959677431<11> × 316427128981<12> × 611028193819<12> × 16120466697541<14> × 370649274902657<15> × 439799488353587<15> × 1045074297886141<16> × 136918989719096015219043061<27> × 835726294918884968025848899<27> × [4646999674084746512585453063861399410988854828874126195959482354801134734568401485734134143405113228069950988268607982710894595048370251002535796308541096801808362095429751367190681878605478949895760133045925400289012288983732070140619701402911661633340596181552383409935001453659840130347004582541139801916056982561999259042963791605575595333627027026372806158220222995148157233014038709401503633503164526846003953044829789705703219894850521<442>] |