Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 650: | \[{7^{650}-1\over6}\] | 23 × 11 × 53 × 131 × 191 × 2551 × 2801 × 157951 × 787021 × 1175071 × 228511817 × 16148168401<11> × 4446437759531<13> × 31280679788951<14> × 434502978835771<15> × 79787519018560501<17> × 35695043869049049222174543845808031<35> × 416101077937444349085210448786432651<36> × 76703889230394194088755921186703377051<38> × 2086832234647581885516525348467916223130150347933333355669584909574513806237844714256558102468733782932885606392636023103492115801<130> × 66612455442739121583395618014737483484967747408140464669796138082858194692386831995490021136450170505597825034427302642723053185407264633444899270551547437137498306420740072646751773702915006339091976001<203> |