34. To calculate the product of all natural numbers from 1 to 50 inclusive, of course, it's better to use a computer. However, you can easily state the number of zeros at the end of this product without resorting to a computer. How many are there?
34. Among the factors of the number $1 \cdot 2 \cdot 3 \cdot \ldots \cdot 50$, 10 numbers are divisible by 5 $(50: 5=10)$, and out of these, 2 numbers are divisible by $5^{2}=25$. Therefore, the product of the numbers from 1 to 50, when factored into prime factors, will contain 12 fives, and there will undoubtedly be more twos. Since $5 \cdot 2=10$, then $(5 \cdot 2)^{12}=10^{12}$, which means that the given product ends with twelve zeros.