Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 411: | \[{15^{411}-1\over14}\] | 241 × 823 × 2467 × 9043 × 1733873 × 71269867 × 460026547 × 35729646307<11> × 8591074136581<13> × 5487280626855094601195734526350955614464668798451340726930635760661138416899900131927755644831564870693051170330885759716928302457851126790355774289060817<154> × [398420243404315909124165142151303358814422869580915253367124698245828323989586073915060298641293836056223722297165033391468653172364504876887967453684722265436566467587190112323345251471078017149635905694048241901639712382547935706173837125365347090197808674413106739009<270>] |