Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 379: | \[{13^{379}-1\over12}\] | 19709 × 1826023 × 1886663 × 1190791471 × 737144208059753497<18> × [213843443870704444584903186598219926222925831011237315009428501828993707864573052673748352370723719882718470169539872301966856943104717251579256021591010033506674557529131595103871527012592993859178149045200599859735941126232139791332528978106666846956422569915697200689314607225563431354335616884441084323195595662382465215921908872025741734625323210124362031420897004352187069<378>] |