Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 351: | \[{15^{351}-1\over14}\] | 53 × 109 × 241 × 541 × 1249 × 7723 × 20749 × 21061 × 157483 × 2854567 × 4640221 × 16354441 × 16655159 × 829049498029<12> × 606451512892729597861<21> × 3022689049104598084874946135455929<34> × 119115855554252461371000291571475371867<39> × [14058077111307852526413570209450579220489398873334484626485150708013770848159735363493940619602867409040528446580583110999206608669068259751966103878698481545935298112081424565780808391856732274647998068505792314472526233583740020793284890442699614787<251>] |