Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 378: | \[{28^{378}-1\over27}\] | 33 × 192 × 29 × 37 × 43 × 109 × 113 × 127 × 163 × 271 × 379 × 541 × 631 × 757 × 1009 × 2269 × 12097 × 13007 × 29443 × 35771 × 47629 × 102547 × 132679 × 444979 × 546211 × 1905121 × 4422461 × 79767829 × 164630467 × 1994659633 × 2320484707 × 28927311337<11> × 1266889762657<13> × 2714261904253<13> × 15731360557954273<17> × 223934956756993189<18> × 10773834771944357821<20> × 68948693997660959163751<23> × 154154940307497300453157<24> × 80504606285644335564853693<26> × 56004645287020645451504447700757281923034575091149549601193<59> × 89077301919840233126352124941168833336278808090991478232138017<62> × 46351849051994686163087338141873302624470915814776175110623928936359<68> × 5648379643356687577049857275517918462211061661174665173561404034393281<70> |