A Big Factorial
C_K_Yang czp001 liuguangxi zimpha a_forsteri Min_25 C3PO Philippe_57721 mathpseudo sinan hervas benito255 nielkh
Public  08/05/17  6xp  Programming  100.0% 
What is the digital sum of 1500000!
You are given: 1938780 for 100000!
[My timing: 120 sec]
You are given: 1938780 for 100000!
[My timing: 120 sec]
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