Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 186: | \[{7^{186}-1\over6}\] | 23 × 3 × 19 × 43 × 311 × 373 × 21143 × 149731 × 5463751 × 9754399 × 2211164386353499<16> × 5420506947192709<16> × 3999088279399464409<19> × 36148617745189465516342817701<29> × 3866324488620374693778318657223462067867054779<46> |