Math Olympiad Contest Problems for Elementary and Middle Schools: #40 [HD]

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Published on November 4, 2016 12:47:31 AM ● Video Link: https://www.youtube.com/watch?v=wFMMgP6HB8o

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If a number ends in zeros, the zeros are called terminal zeros. For example, 520,000 has four terminal zeros, but 502,000 has just three terminal zeros. Let N equal the product of all counting numbers from 1 through 140.

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