Benedict Irwin added The 90 Thing.tex  over 9 years ago

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\section{The 90 Thing}  Lets consider an improper concatentation/repeat. Where $90;3=909090$ as opposed to $9990$.  Consider primality of the form $(90;n) +1$ \begin{equation} \begin{array}{|c|c|c|}  \hline  n & prime? & num & fac\\  0 & 0 & 1 & 1 \\  1 & 0 & 91 & 7×13\\  2 & 1 & 9091 & 9091 \\  3 & 1 & (90;3)+1 & (90;3)+1 \\  4 & 0 & ... & 7×13×19×52579 \\  5 & 0 & ... & 11×23×4093×8779 \\  6 & 0 & ... & 859×1058313049 \\  7 & 0 & ... & 7×13×211×241×2161×9091 \\  8 & 0 & ... & 103×4013×21993833369 \\  9 & 1 & (90;9)+1 & (90;9)+1 \\  10 & 0 & ... & 7^2×13×127×2689×459691×909091 \\  11 & 0 & ... & 47×139×2531×549797184491917 \\  12 & 0 & ... & 251×5051×9091×78875943472201 \\  13 & 0 & ... & 7×13×19×52579×70541929×14175966169 \\  14 & 0 & ... & 59×154083204930662557781201849 \\  15 & 1 & (90;15)+1 & (90;15)+1 \\  16 & 0 & ... & 7×11×13×23×4093×8779×599144041×183411838171 \\  \end{array}  \end{equation}