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Using its own digits (Posted on 2018-05-31) Difficulty: 3 of 5
a.What two-digit number equals the product of units' digit by the factorial of tens' digit?
b. What if a non-decimal system (base below ten) were allowed?

  Submitted by Ady TZIDON    
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Solution: (Hide)
36 base 10
33 base 5

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: beyond base 10, analytical solutionDaniel2018-06-01 11:35:36
re(5): beyond base 10, continuedCharlie2018-06-01 10:48:21
re(4): beyond base 10, analytical solution....TBCCharlie2018-06-01 10:43:51
re(3): beyond base 10, analytical solution....TBCCharlie2018-06-01 10:12:25
re(2): beyond base 10, analytical solution....TBCCharlie2018-06-01 08:45:40
spoilerxdog2018-06-01 08:13:40
Hints/Tipsre: beyond base 10, analytical solution....TBCAdy TZIDON2018-06-01 04:14:13
beyond base 10, analytical solutionDaniel2018-05-31 23:55:17
Solutioncomputer solutionCharlie2018-05-31 14:31:30
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