Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 595: | \[{20^{595}-1\over19}\] | 11 × 29 × 61 × 71 × 239 × 251 × 491 × 701 × 911 × 2381 × 3571 × 23311 × 32719 × 78541 × 164011 × 1669571 × 2230061 × 8756021 × 455851601 × 18510970711<11> × 13295107990361<14> × 36372797968360681<17> × 126433576549825993751<21> × 689852631578947368421<21> × 2025046074983629951481<22> × 34328433560837262550691496671<29> × 37038726233519411473987238813761667130865753406913436234898939276876292520358116802385012861293706006173632328171029<116> × [7848381048574433435480529554146320373841018060637264244359571076611086097605772916778513544321898026083247698579152906675388269314059919800133234842487218729402846156639055409175173116345049628557077489688891<208>] × 134076422411922082711467236169091202526796275491564071066724015363358832730983083822761859726460663399661235915509884207369526171944644539798558017884063090833258897265912339390751380532720861373744853865912720154145671321985679811970428865099931<246> |