Let be defined as:
Find the remainder when is divided by .
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It suffices to show that f ( 3 ) is going to be so large that it has to be divisible by 2 0 1 4 as factorials are super composite. In other words if f ( 3 ) = n ! and n ≥ 2 0 1 4 then 2 0 1 4 ∣ n ! . This means that f ( n ) for an n > 3 grows even faster and therefore are all divisible by 2 0 1 4 . What's left is f ( 1 ) + f ( 2 ) which can be computed to be 3 .