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301201207 (another Prime Pages' Curiosity) |
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If a day had 30 (primorial) hours, an hour
120 (factorial) minutes and a minute 120
(highly composite) seconds, then the three hands of an
analogue clock would all coincide in exactly 7
(prime) positions (determined precisely by the vertices of
a regular heptagon with a vertex at the noon or midnight
position). [Beedassy]
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