Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 411: | \[{7^{411}-1\over6}\] | 3 × 19 × 2741 × 213721 × 251533 × 575401 × 9712753 × 109781389 × 329437051 × 27500724319<11> × 8350989090751<13> × 21597040515507988471<20> × 57162922399254002352124124899<29> × 65480203458464902965944539043<29> × 18142811321510255442702751468712154533804561<44> × 63080873206688032079046293007643249980736133383978696668881008056743839805799132389805180588341174232657520688969898086696732471403099640030047462859679724097<158> |