Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 805: | \[{4^{805}-1\over3}\] | 11 × 31 × 43 × 47 × 71 × 127 × 281 × 691 × 1289 × 14951 × 86171 × 122921 × 178481 × 2796203 × 3188767 × 4036961 × 1884103651 × 13816619111<11> × 45076044553<11> × 345767385170491<15> × 2646507710984041<16> × 33035981768945891<17> × 14808607715315782481<20> × 8103467492759792327149800361564410265219<40> × 368807221314046570921624935038049174011736160751<48> × 18883360229126539123965611847358657506356995001231479438139229721<65> × 975941328661716765720383672891343308007434695288704553180499877492976465737761<78> × 331491135967206244657979810427039630258881338881381693422837956185559180298159560378704962315457020551<102> |