Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 511: | \[{7^{511}-1\over6}\] | 29 × 439 × 4733 × 3675989 × 359390389 × 1925147533 × 290233994513<12> × 428483751128077<15> × 1958423494433591<16> × 7222605228105536202757606969<28> × [432773211539290132282858179528951374388060079699667465710491400703973182299380768202132728208231439315658022345320995609209328851793126660024062377266498273881776401660240441415524089327911728976779176305978289054463181703829054396903949358872520591203725499299432469162428170273677847443126847356270336214066270577095759303249097<330>] |