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when toggle format what by license comment
Aug 13, 2014 at 8:35 comment added Jose Arnaldo Bebita The more general question remains open for the case of even almost perfect numbers.
Aug 13, 2014 at 8:33 history edited Jose Arnaldo Bebita CC BY-SA 3.0
changed "perfect square" to "square" (two [2] occurrences)
Aug 13, 2014 at 8:26 history answered Jose Arnaldo Bebita CC BY-SA 3.0