Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
103: | \[{28^{103}-1\over27}\] | 150116896618839783414413815639723722503874563<45> × 28150355675522488109636965612401128734245290826908506589397121157979341867837703405351492055414726012751<104> |