Discussion

Explanation:

Number of 2 in the product of all integers from 1 to 100 $=\frac{100}{2}+\frac{100}{4}+\frac{100}{8}+\frac{100}{16}+\frac{100}{32}+\frac{100}{64}$

= 50 + 25 +12 + 6 + 3 +1= 91 and number of 5 in the product of all integers from 1 to 100 = $\frac{100}{5}+\frac{100}{25}$ = 20 + 4 = 24

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