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SOD cubed equals Sum of Squares of SODs (Posted on 2019-11-20) Difficulty: 3 of 5
Find all 2 digit base 10 integer pairs (X, Y) such that:

  • Y is not larger than X
  • (sod(X*Y))^3 equals (sod(X))^2 + (sod(Y))^2
... where sod(n) indicates the sum of digits of n

See The Solution Submitted by Larry    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Hints/Tipsre: solution? A typoAdy TZIDON2019-11-20 14:36:16
Solutioncomputer-aided solutionCharlie2019-11-20 14:15:56
solution?Jer2019-11-20 13:12:58
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