Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 380: | \[{10^{380}-1\over9}\] | 11 × 41 × 101 × 191 × 271 × 761 × 1901 × 3041 × 3541 × 9091 × 27961 × 59281 × 63841 × 74861 × 417332341 × 1812604116731<13> × 121450506296081<15> × 722817036322379041<18> × 909090909090909091<18> × 1111111111111111111<19> × 1369778187490592461<19> × 1289981231950849543985493631<28> × 780548018657747948342675331841<30> × 965194617121640791456070347951751<33> × 458192181720740635773018630313952996833801<42> × 4996731930447843676185843959746621491531100801<46> × 20547226778782170120539430083689730394727567536361<50> |