Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 387: | \[{7^{387}-1\over6}\] | 32 × 19 × 37 × 1063 × 10837 × 63350976270733<14> × 166003607842448777<18> × 289414765514841661<18> × 2192537062271178641<19> × 175446584281395198837259<24> × 694623197348682715265952229891<30> × 1515492051809463320804633626637111430388057<43> × 4583142681916056752995023804494031799489400087334962946866717203441543<70> × 457299108883653825883853223306465080566360541916826721338777118806091728304473122859<84> |