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Integers only (Posted on 2023-09-25) Difficulty: 2 of 5
Given:
f(x)=Sum[x/n!] for all positive integers n, where the [] brackets define the integer part of x (e.g. [pi]=3)

What is x, if f(x)=1215

See The Solution Submitted by Ady TZIDON    
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  Subject Author Date
SolutionBetter solutionJer2023-09-25 10:03:28
SolutionComputer solutionLarry2023-09-25 08:57:50
Some Thoughtsre(2): SolutionAdy TZIDON2023-09-25 08:53:07
re: SolutionCharlie2023-09-25 08:44:01
SolutionHunting for xCharlie2023-09-25 08:39:48
SolutionSolutionJer2023-09-25 07:06:00
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