Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 309: | \[{25^{309}-1\over24}\] | 3 × 7 × 31 × 619 × 3709 × 28429 × 1487527 × 4527469 × 642310267 × 8934148519<10> × 24193913287<11> × 330545029709161<15> × 422879580647947<15> × 1517713338849924001<19> × 59117897713198738371603984809<29> × 39546955636451768643571562540114219<35> × 42173111702521341940416989340041084225191<41> × 2085418272967581164158673946858019191907546357968893257944408109<64> × 164346021921044126127443451100580464515251340647713125993808110555013021<72> × 134486823638064912562947358614376605014890240423391805433867220946046780045282460232517771<90> |