Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 475: | \[{19^{475}-1\over18}\] | 101 × 151 × 911 × 1601 × 1901 × 5701 × 6451 × 46371401 × 5484610301<10> × 36035657195482151<17> × 30599996254018508841101<23> × 109912203092239643840221<24> × 58586321603695857848685588254120444000338059307507557951422037179294963122412142809939381<89> × [506090005851306807952354083094603239655422003400960093895492384741933458053379025382626153935486384095205158171048941580599676874510701462291300791062491904843264716268325190408627231475133424176055440056845851373867067310752972172325853718590886270392500077739274358182512714375042729799325172910261998412038835661396025720194741258951985765983224533348335448679342690388300913327355089419608180050007560470567731901<417>] |