Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 346: | \[{31^{346}-1\over30}\] | 25 × 347 × 173347 × 206838109 × 405670828879<12> × 530988791937281<15> × 933943287947919218437631265408294267089<39> × 4715629387612348923989826887818357622351414398501577104569705380591857454726814801383419<88> × 616190849029731601728694079361176447710721788558821559208863922151197156632674626189773361733406233598394516650703<114> × [146948081836955136576471150158502320391661964451281522310500518899051231400078832704099012732567547836924350517820795071765366201099573212787626917596365464045138470230992224817584242334184064441760394021692429883828286337670038019<231>] |