Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 715: | \[{7^{715}-1\over6}\] | 131 × 1123 × 2801 × 157951 × 293459 × 787021 × 16148168401<11> × 4446437759531<13> × 434502978835771<15> × 528808508322667<15> × 5457586804596062091175455674392801<34> × 376215890379315997311416372784691746214777<42> × 1111942789781566781299747693078700888402223739<46> × [5175831810093436801164630787720983701285435865489872264642039578986593816917798098730830931328671072439694501764434360950521728419302176613603148871903998447527728061581878975211105444421842734858257626874234308724765178533239361232294056130514513267673423458191419549608669672741408700539873272528332263473511773617321477857779824517343792039837444486114803650194144946920741283450051629225130154157353601<406>] |