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Omni-MATH / Determine the least possible value of the natural number n such that n! ends in exactly 1987 zeros. [hide="Note"]Note. Here (and generally in MathLinks) natural numbers supposed to…

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Determine the least possible value of the natural number nn such that n!n! ends in exactly 19871987 zeros. [hide="Note"]Note. Here (and generally in MathLinks) natural numbers supposed to be positive.[/hide]
Plain-text mathematical notation (without MathML)
Determine the least possible value of the natural number n such that n! ends in exactly 1987 zeros.

[hide="Note"]Note. Here (and generally in MathLinks) natural numbers supposed to be positive.[/hide]
Original LaTeX notation
Determine the least possible value of the natural number $n$ such that $n!$ ends in exactly $1987$ zeros.

[hide="Note"]Note. Here (and generally in MathLinks) natural numbers supposed to be positive.[/hide]

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