Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 304: | \[{18^{304}-1\over17}\] | 52 × 13 × 192 × 97 × 113 × 929 × 6689 × 6841 × 8513 × 60497 × 269117 × 3539777 × 74792209 × 113607841 × 6261053129<10> × 202438500542522921<18> × 6089884909802812423<19> × 1961870762757168078553<22> × 677080532840701735758569273964609800074705481019247070093955059732080735738423252913<84> × 100878102698683091775738942468353150528846308494855228663748015406224799333132870109205717954258183454521675569595081736966557602106247884951300132598190061171346502312664993<174> |