Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 442: | \[{7^{442}-1\over6}\] | 23 × 53 × 443 × 1327 × 14009 × 22543 × 65312573 × 228511817 × 2767631689 × 16148168401<11> × 588631616197<12> × 760999500977<12> × 29078814248401<14> × 9761302041992117524910703947100342853<37> × 9289087607485689321226342278783154488250477781929959272827291115047333752043159677223527834977144046718995347<109> × 91769972695537268856319352113029919746945781451263592341601960585262772672263465239266662728332082823252024421297121946235684202149126861<137> |