Talk:100 doors: Difference between revisions
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→An observation: Added comment on the number of doors.
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::Actually, square numbers have an even number of factors, the odd count comes from the first iteration that opens all doors. --[[User:AlexLehm|AlexLehm]] 22:16, 19 October 2011 (UTC)
::: Integer factors of 5 -> [1, 5], Integer factors of 4 -> [1, 2, 4] (The integer square root gives the list an odd length - other factors are always paired with their matching quotients) [[User:Hout|Hout]] ([[User talk:Hout|talk]]) 07:59, 8 September 2016 (UTC)
It also seems that the number of doors left open is the same as the integer square root of the total number of doors. --[[User:Nig|Nig]] ([[User talk:Nig|talk]]) 14:30, 16 June 2023 (UTC)
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