AMC 8 1997 Problem 23

AMC8 1997 年第 23

整除与因数★★★★
Problem There are positive integers that have these properties: The sum of the squares of their digits is equal to 50 Each digit is larger than the one on it's left The product of the digits of the largest integer with both properties is
存在满足以下性质的正整数: 各位数字的平方和等于 50 每位数字比它左边的数字大同时满足两个性质的最大整数的各位数字之积是
  1. A.7
  2. B.25
  3. C.36
  4. D.48
  5. E.60

正确答案 · Correct Answer

C

解析 · Solution

解析整理中

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