Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 371: | \[{19^{371}-1\over18}\] | 107 × 701 × 743 × 70841 × 4013824136323<13> × 323930821687153<15> × 2551089855701675251204783<25> × 37334173314913678536474517<26> × [297231783886259446900937172909928868050216677646381222162427296179816745855918614889658788919756077840066249582499317352082222681390713399609826839206604886134833172043264740655922988749022512840917131486197405106691566157089896753828867700593124704592667987133337716573301951656622712713777661094694761228193602559959943605069493508431477292978682061052735203302910273495907230343629<384>] |