Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 408: | \[{22^{408}-1\over21}\] | 3 × 5 × 132 × 23 × 73 × 97 × 103 × 137 × 157 × 239 × 409 × 463 × 613 × 1489 × 3209 × 108461 × 191353 × 286777 × 4690981 × 27385777 × 74729519 × 128000923 × 132928441 × 1094531197 × 1594728827 × 176634767651<12> × 283020762986833<15> × 12513453088956661<17> × 29084130008763268099<20> × 485564174838252486973<21> × 757552938418525527948986131<27> × 12522681154937298774621628747249<32> × 700290133671216490190565446887351489<36> × 83436447569696846137157887090522121537<38> × 347403371875864268480263472905773397685582041<45> × 56707151151880416379475541562545026798917520407688843461<56> × 5427156323684921594113137563717246277614221545064868818609<58> × 22589506329087718918750669926627652117211730747851856862282447467546313<71> |