Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 495: | \[{5^{495}-1\over4}\] | 112 × 19 × 31 × 71 × 181 × 199 × 331 × 829 × 991 × 1171 × 1741 × 2311 × 19801 × 103511 × 143551 × 169831 × 511831 × 1731511 × 12207031 × 65628751 × 190295821 × 297315901 × 578259991 × 386478495679<12> × 14300545887541<14> × 22542470482159<14> × 153560376376050799<18> × 9867165115635267180926131<25> × 13585095374919980427914311<26> × 123624849246637675534237287451<30> × 17807512854386592386688490236483121<35> × 1597142128252930601838389363064553211596194117870330968385908821611508695511<76> |