Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 516: | \[{7^{516}-1\over6}\] | 24 × 3 × 52 × 13 × 19 × 432 × 173 × 181 × 947 × 1033 × 10837 × 14449 × 19867 × 20899 × 163573 × 235211 × 3799051 × 4084141 × 4749781 × 384439093 × 1857499496101<13> × 63350976270733<14> × 166003607842448777<18> × 2192537062271178641<19> × 175446584281395198837259<24> × 499711620081214598029911373<27> × 694623197348682715265952229891<30> × 2778730173523233938297878335091<31> × 533721886283112766162388808829964093134556068537042973846397895277<66> × 426064051763970462419710676303990571995644561044152001816619059960541092699217492769820403672854416607006759441636190099873<123> |