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Ruby
[QUIZ] Happy Numbers (#93)
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[QUOTE="Morton Goldberg, post: 4525212"] Clearly, there is no largest happy number. Any number of the form 10**n in base b is b-relative happy (with rank 1). I feel this makes the stated question an ill-conditioned one. This seems a better question to pursue than the first. Other questions one might explore: how does rank vary as the numbers increase? Does maximum rank grow as happy numbers get bigger? Is there a pattern? Are there interesting statistics? Regards, Morton [/QUOTE]
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[QUIZ] Happy Numbers (#93)
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