Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 310: | \[{31^{310}-1\over30}\] | 25 × 5 × 11 × 41 × 311 × 373 × 1613 × 17351 × 21821 × 62869 × 145577 × 1942151 × 17790901 × 117001441 × 14046004014701<14> × 35789156484227<14> × 2706690202468649<16> × 26849546845452641<17> × 608885028530064901<18> × 612582959904673441<18> × 84847808038659934575069639759252239711<38> × 568972471024107865287021434301977158534824481<45> × 1232919750942944487783721472720188591866492811<46> × 5131837492251973746060016702477425411867425641<46> × 88896270609320385787641437577909568758714314649392078577877248449523670731636399552480684239666471170845978397240646698367972734999679359361<140> |