Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 268: | \[{13^{268}-1\over12}\] | 22 × 5 × 7 × 17 × 269 × 4021 × 138959 × 586079017 × 1093561021297<13> × 28376556792667<14> × 117628061579381<15> × 1195860242597359<16> × 597891861167008906854329<24> × 208987627610561976973469464852117<33> × 46832111174371450604616850217838043873<38> × 7213463499437577647267326183042302804613669934521<49> × 74251653599805181928111066321492103466039112565642818927319495228806387352409<77> |