We're Not Looking For Trailing Zeroes?

Number Theory Level 5

Find the last three non-zero digits of 2015!2015!.

Notation: !! denotes the factorial notation. For example, 8!=1×2×3×⋯×88! = 1\times2\times3\times\cdots\times8 .

Alex Spagnoletti by Alex Spagnoletti
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