Thursday, October 24, 2013

40733 ( 1 + 2 + 145 + 40585 )

1 = 1!

2 = 2!

145 = 1! + 4! + 5!

40585 = 4! + 0! + 5! + 8! + 5!

No other number is equal to the sum of the factorials of its digits.


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