tables > repunit > 21

Base 21 Repunits

Table

Viewing: 515 – 515 << prev next >>

(available: 0-999)

Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 515: \[{21^{515}-1\over20}\] 5 × 4327 × 40841 × 49853 × 81371 × 367711 × 2150265315694901<16> × 41159199738211531<17> × 61658441795480584836811<23> × 3578319942163234761948197423711625937273928656180280573469957211934243130134304207939291415435034091514822796033427258153670673<127> × [1703551497046120784125774743112056744906673023382929961287331243554827185512699040373552163389777788090386204661086037390659520134742653611796285231933413627888491983778623909433306878499861724470748493247068682062894497828607367227117235104248595934534427669190993705498798327468636506643030520906227698650365163497867758108374288015845958119831302570386789318888557219309497363044541709614867826547863793156500910163288133245521273233894962796812952205631078951047140882961<475>]

Index range: 515 – 515 << prev next >>