Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 416: | \[{31^{416}-1\over30}\] | 29 × 132 × 17 × 37 × 53 × 409 × 1129 × 1889 × 17863 × 42407 × 1347329 × 2426789 × 6139297 × 7908811 × 23277313 × 116337521 × 1404631073 × 11014021409<11> × 25085030513<11> × 76037563733<11> × 6060328173121<13> × 42716694944587<14> × 101686136508893<15> × 305688893141113<15> × 5603212901768856193<19> × 7480641128031875233<19> × 224721202412918666334576819250523191369<39> × 24447050282908296563870818732181703345691103738234473692434128302279568268515620830737993918945586557552868554424316613507377654721<131> × [189669809337410453774165293835023590988138894821118309219383018528576930194744444560315336316006395164364848805192590826702480596388703632637602219481747257327960888639221227778648576241693878305568525542701633662315000114735787490472066561145389601<249>] |