Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 650: | \[{15^{650}-1\over14}\] | 24 × 11 × 31 × 53 × 79 × 131 × 1531 × 4931 × 42901 × 46751 × 157483 × 9555151 × 16655159 × 1294671691 × 1539711288259<13> × 34800625873379851<17> × 7112705843777290751<19> × 118991428865318211233461<24> × 1962154744388953230433591<25> × 373077762490689142692289497001<30> × 10988032146456688677092457548497201<35> × 2019047273585208433900886541315654544678694069335036331<55> × [3877164830741272627284247976005940319023205786793892212923624096938180441902782186374899838346863489240919797215935317058594496203772681488070316296821167764925298315576159385396581468797661915690550475898761584839430792829767903589893812189901<244>] × 4898954228681874344180051355728912101639561742950988093263722474581010519699853815695631842289466056680785326056100629800884770274340612933806750778387955926029667451311525252278417763860298163799391698008775433074103408136574745837667266575312351903001<253> |