16 lines
806 B
Text
16 lines
806 B
Text
From Wikipedia, the free encyclopedia:
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:A [[wp:Happy number|happy number]] is defined by the following process:
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: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals '''1''' (where it will stay), or it loops endlessly in a cycle which does not include '''1'''. Those numbers for which this process ends in '''1''' are happy numbers, while those that do not end in '''1''' are unhappy numbers.
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Display an example of your output here.
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;task:
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Find and print the first 8 happy numbers.
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;See also
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* [[oeis:A007770|The happy numbers on OEIS: A007770]]
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* [[oeis:A031177|The unhappy numbers on OEIS; A031177]]
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<br><br>
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