Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 380: | \[{22^{380}-1\over21}\] | 52 × 23 × 97 × 181 × 191 × 229 × 401 × 571 × 3041 × 4789 × 45943 × 150901 × 224071 × 245411 × 341203 × 15187651 × 23967703 × 50218172111<11> × 97404596002423<14> × 277114143113681<15> × 654963203993173<15> × 58167002655376561<17> × 2951364922875749801318096593<28> × 9624357919068403555091512367414261<34> × 77671055466842897847630169138452481<35> × 36670666122753964618630120856013763857269410392281<50> × 8912448863225548229728954117986445590222909587221201<52> × 1179952734120224528416405524148204601386516306571714390752561421<64> × 20522142210785156666261675045555168847886612869394893078687801877051639500659112374002791012496572914004398657801<113> |