Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
207: | \[{23^{207}-1\over22}\] | 7 × 19 × 79 × 277 × 461 × 829 × 1289 × 1933 × 11593 × 120889 × 7792003 × 831603031789<12> × 1920647391913<13> × 49696373692116337<17> × 525309509246793112837<21> × 2555778231696354754306517338366249<34> × 10633643108133575934743114390258460601653034014712814974068992262711930310954450629526428490190536312068935126535578274256064015156206551907202937254377<152> |