Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 621: | \[{5^{621}-1\over4}\] | 19 × 31 × 109 × 139 × 271 × 829 × 4159 × 6211 × 8971 × 31051 × 310501 × 10047916621<11> × 229939415011<12> × 332207361361<12> × 598761682261<12> × 8868050880709<13> × 18133283200612459389452401756767476520342710009526710760461219593942056686456982781<83> × [86785080244045367876982319120071136697864345486684958852415078701018649692851972046174061476754890052428044813939345019224057582430982880257351636921213742389760247369292697460439519675204539534924687670051286394475027508130098236285773287437156576219189663591<260>] |