2017-05-12から1日間の記事一覧
問題 Problem 8:Largest product in a series The four adjacent digits in the 1000-digit number that have the greatest product are 9 × 9 × 8 × 9 = 5832.73167176531330624919225119674426574742355349194934 96983520312774506326239578318016984801…