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1×2×3×…… The tail of x n has exactly 50 consecutive zeros. What is the maximum value of natural number n Urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent urgent!!!!!!!!!!!!!!!!!!!!!!!!
There are 50 zeros, which means that there are 50 five factors,
When n = 200, there are five factors: 200 △ 5 + 200 △ 25 + 200 △ 125 = 40 + 8 + 1 = 49
So the maximum n is 209
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