Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 464: | \[{20^{464}-1\over19}\] | 3 × 7 × 17 × 59 × 233 × 401 × 929 × 1741 × 10789 × 143609 × 160001 × 291857 × 1063721 × 1510321 × 466307299 × 500140961 × 1505882353 × 78555238513<11> × 71353204641689<14> × 10940140435272203<17> × 111552123535003057<18> × 134223608855082547<18> × 25104088611489177761<20> × 24913104053001946106916314900846713<35> × 1938753773051958673628994610523493889<37> × 538183971558805833828812947515874242761<39> × 40294168346698072709937499383339568632772697<44> × 146981129182905073746918699999532086300279098295450844298137<60> × [543717442010424326249747275528641647504656932467248441804088660936815223920306600158500032131628589643848953606045232389368014583667650887741929871607724800768432417502944546402178559557432314964741638170082335101089186257<222>] |