Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 494: | \[{19^{494}-1\over18}\] | 22 × 5 × 131 × 313 × 599 × 1483 × 4447 × 17291 × 29251 × 98801 × 108301 × 176021 × 291331 × 1049219 × 108371251 × 133338869 × 454654653701<12> × 870542161121<12> × 1588294915919557<16> × 333750087267908533<18> × 109912203092239643840221<24> × 138587623113850140015199885542764315075896934184591100137722328872256609780776152975529<87> × 4143364128171014091237080986080986905534869677715080088678586019619129363775212418221246287836123068834179539077157314600211049<127> × 15578849065396975502870257984758640698993523857879112855949269124169891543397241152472718315893062446265843448847006068160979846227674887376395966707382513680583553098737053839381280687590997673351080773038610238253458925858371572975123625361182278245662463936669414514241<272> |