79

This number is a prime.

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Each of the numbers 1 to 79 gives a larger number when you write out its English name and add the letters using a=1, b=2, c=3, ... (but 80 gives 74). [Hartley]

Submitted: 2004-11-24 08:25:49;   Last Modified: 2008-01-30 11:28:00.
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