Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 644: | \[{7^{644}-1\over6}\] | 24 × 52 × 29 × 47 × 113 × 911 × 1289 × 3083 × 4733 × 26681 × 649981 × 811441 × 15513961 × 49613117 × 4406588677<10> × 13564461457<11> × 8884810040009<13> × 31479823396757<14> × 39916941655753<14> × 115831833517457<15> × 3421093417510114543<19> × 55681942361860463813<20> × 4615185796935334098258901<25> × 51050702647066486876606286380153477<35> × 140745137728109762598398979050914020691536518797429361<54> × 150557819388250184737538915006485086145065087672198550975239193637571002600137<78> × 3470678218508074289156839622540145519085422892515599000368626955596969392833324822407959322018865211416783990631545973729963867365435009081013867393993108581914150513029193032934602138156441<190> |