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Y ask about Y ? (Posted on 2017-04-04) Difficulty: 2 of 5
(i)Y is a positive integer.
(ii) Y-1 is divisible by 5;
(iii) Y is divisible by 2,3,4,6,7,8 and 9.

What is the smallest Y?.

  Submitted by Ady TZIDON    
Rating: 3.0000 (1 votes)
Solution: (Hide)
The LCM of 2,3,4,6,7,8,9 is 504
The smallest n for which 504*n-1 is a multiple of 5 is n=4.
Answer Y=2016

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionExplanation to Puzzle AnswerK Sengupta2022-06-09 00:51:09
Puzzle AnswerK Sengupta2022-06-09 00:40:57
re(2): Another approachBrian Smith2017-04-13 09:22:02
Questionre: Another approachAdy TZIDON2017-04-13 01:08:52
Y YSteve Herman2017-04-04 14:26:50
SolutionAnother approachBrian Smith2017-04-04 12:25:42
SolutionBetter Late Than Never (spoiler)Steve Herman2017-04-04 10:35:12
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