Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 240: | \[{22^{240}-1\over21}\] | 3 × 52 × 132 × 17 × 23 × 31 × 41 × 61 × 73 × 97 × 157 × 181 × 241 × 401 × 463 × 1489 × 3209 × 21001 × 150901 × 191353 × 224071 × 245411 × 286777 × 468241 × 940993 × 6298801 × 305490121 × 858794191 × 1850478481 × 3227992561 × 19982206801<11> × 240425214401<12> × 13278819202897<14> × 6444508898190421<16> × 117040234821177281<18> × 77480176584773759239954241<26> × 68553522878665997663446114317721<32> × 4115362760233681122587761270303386242006336335785291903286809414902984241841<76> |