factorials

Computer Science Level pending

What is the smallest number N, such that the sum of the digits in N! is 8001. for example, the sum of the digits in 6! is 9, because 1 2 3 4 5*6 is 720.


The answer is 787.

Ted Meyer by Ted Meyer , 27, USA

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1 solution

Thaddeus Abiy
Feb 5, 2014

Slow,Ugly,Obfuscated python code 

from math import factorial as f
print min(filter(lambda x:sum(map(int,str(f(x))))==8001,range(1000)))
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