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Recent Problems

IDDescription / TitleSolved By
756Approximating a Sum147
755Not Zeckendorf324
754Product of Gauss Factorials309
753Fermat Equation225
752Powers of $1+\sqrt 7$291
751Concatenation Coincidence524
750Optimal Card Stacking211
749Near Power Sums333
748Upside down Diophantine equation212
747Triangular Pizza134