Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 480: | \[{22^{480}-1\over21}\] | 3 × 52 × 132 × 17 × 23 × 31 × 41 × 61 × 73 × 97 × 157 × 181 × 241 × 401 × 449 × 463 × 1489 × 3209 × 21001 × 150901 × 174337 × 180001 × 191353 × 224071 × 245411 × 286777 × 468241 × 940993 × 2310689 × 6298801 × 305490121 × 858794191 × 1850478481 × 3227992561 × 19982206801<11> × 240425214401<12> × 2902518892577<13> × 13278819202897<14> × 6444508898190421<16> × 14844467842922881<17> × 117040234821177281<18> × 3201486004644534721<19> × 1926160251298392148728001<25> × 9621842168443061282218081<25> × 77480176584773759239954241<26> × 264395747054239228149497761<27> × 68553522878665997663446114317721<32> × 52015912064756497188930334189150885633<38> × 221312745775315601684664742757584791711841<42> × 1262506423741383719879420599647957820410132481<46> × 47480843551251539770871336049108426721825406598503314561<56> × 4115362760233681122587761270303386242006336335785291903286809414902984241841<76> |