Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
218: | \[{13^{218}-1\over12}\] | 2 × 7 × 1091 × 2617 × 29867 × 965087 × 794018567 × 7730096009<10> × 36081138446572828651824827033<29> × 1805755998075691017039700782897050557563115735352226096871752009842282258001529613<82> × 125025942261588947866880499769668751057693669636754394291266568468102904285433551663774528443041<96> |