Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 494: | \[{15^{494}-1\over14}\] | 24 × 53 × 79 × 229 × 13757 × 88427 × 157483 × 4149601 × 4272113 × 16655159 × 1539711288259<13> × 21515093696513<14> × 370649274902657<15> × 439799488353587<15> × [14669192474034532137485140986730028390187038143267368331282105524356747003122677736011821335016562527721695215517978452398513128371549527624482528120962485096107844862803893797438998695121372028041376233677843557522055399164427491<230>] × 101332494231224451511276033905193003940785455835866519666970597066573925780338986923130508020893788336881921173560510623951404321896810458426197287510988730989562200992794827113291948987507302370913567644733491788090060003931818572000774334115726318359361<255> |