Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 387: | \[{13^{387}-1\over12}\] | 32 × 61 × 6451 × 119627 × 1609669 × 643072106709847<15> × 7180925126477041<16> × 43466212635494347<17> × 552781743698966779174737704265497702530829<42> × 1708905187270614165827914326920860217053103683566606076777<58> × [80402099197572814933882553393009833778738249629724408325321880106871099978288626394782136750605140326578677734264323201566799486326190491959682431007067256406302496661548113441878533650485298733993039409428827566828426112189922603355344278244217236196855233477960207<266>] |