Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 618: | \[{19^{618}-1\over18}\] | 22 × 3 × 5 × 73 × 127 × 619 × 1031 × 5563 × 25339 × 315181 × 1163077 × 243407953 × 206553581947<12> × 405834978467<12> × 1932796619522767<16> × 1136629356060574883918153527<28> × 795356493696100735275858305466442450979<39> × 31388488719729499196309105908882161764728016396176309609484685238878799220041498699080007<89> × 2781054154752782883032125779881884379761516802550397017190960448523488191754317061752510502291353191102716115805637<115> × [1452739231114346768626957385213444637959636805103657367776983443363723391954831088747273650108051784281603739988353809131095056834009076140846598002633456627831225718820481178113981375549689045335870663905799<208>] × [2652993010463132197036539391609054461589662006288456197357540487058059790084781863932584336106457465591116355053589601295633433388336630572638176102899752922023400920506690381309917726230219730900759061285444130723671767647426661536469<235>] |