Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 518: | \[{25^{518}-1\over24}\] | 2 × 13 × 29 × 149 × 449 × 4663 × 9103 × 9769 × 19531 × 40849 × 29010221 × 234750601 × 13971969971<11> × 8737481256739<13> × 45920153384867<14> × 1483253451821989<16> × 13879650012159635243<20> × 1663105108175775311527481<25> × 12331512430205535516641371<26> × 250167286245585418284207152745815261470037<42> × 510241095096183757930733363918820917976121<42> × 415321840426452221170658421326334142542846261922617410925283443238438974033992932819012017226445839135990537159<111> × 176056755096110933979308904205237674875392267408594919567631957463221599371454526488678276749409038187469765514321189864280227109<129> × 225384993919540693989734469362644705566765495940837012208881910122386832487761972900761948617292997714011813063376913937342103926132732974444974400741792531428936105150872075505382814582471928580710196067708148724908319191456440363523333<237> |