Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 526: | \[{7^{526}-1\over6}\] | 23 × 1579 × 5261 × 111473077 × 246420328513<12> × 90084871694329<14> × 22552683088834321065574849<26> × 125964970427584638596267035086794589086977<42> × 330356473356706630143084182110481076968694111519479821312366757981<66> × 265799489010506998952247476548157401788003618449001603472530395754819736985343973809633195038761<96> × 13501873147471972954689538111415631729460648170093239967407681747980350285729119758610910838862428945826802180747292223920683241272655516442519061243495032450567962872899400857<176> |