Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 340: | \[{31^{340}-1\over30}\] | 26 × 5 × 11 × 13 × 37 × 41 × 103 × 181 × 1361 × 3061 × 17351 × 21821 × 30941 × 108971 × 1399577 × 2964461 × 5153381 × 4707206941<10> × 232122807601<12> × 391206807721<12> × 21736504684553261<17> × 224499664484159761<18> × 6841661642646463343047<22> × 751670559138758105956097<24> × 1682325489672499143634073<25> × 1246112358468339440180203655945811719561<40> × 292415865518548212725264181682005402545390163298379652017348311<63> × 1245141934790891820186929953481042617404430460698797792065080730109689040939824529361<85> × 31981401984564650456574296503817647050150123464434827455597943134822212042542313945992969009803264967492249507022348636080054761<128> |