Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 312: | \[{18^{312}-1\over17}\] | 52 × 73 × 132 × 19 × 53 × 79 × 113 × 131 × 157 × 229 × 307 × 313 × 457 × 521 × 929 × 1249 × 1873 × 2081 × 21997 × 27457 × 4020180841 × 5210864257<10> × 5601346141<10> × 7424759473<10> × 11019855601<11> × 29759719289<11> × 15715445027621<14> × 260800658620746193<18> × 581721119015050561<18> × 170258429679493134487<21> × 113633993486079374108113<24> × 12060074821194002629696165393<29> × 1412364383703504438982118048251<31> × 3666313911384869983836065484314196953809<40> × 823077700068943122583014136847089877852888480350741198428088590451378743150394101522605089<90> |