Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 322: | \[{4^{322}-1\over3}\] | 5 × 29 × 43 × 47 × 113 × 127 × 277 × 1013 × 1289 × 1657 × 1933 × 3221 × 30269 × 169373 × 178481 × 298817 × 2796203 × 3188767 × 209160253 × 45076044553<11> × 115927640417<12> × 14808607715315782481<20> × 179351574736387915177<21> × 27037028118448801270021<23> × 8103467492759792327149800361564410265219<40> |