Task:

Write a Java program that returns the number of trailing zeroes for a given n! factorial.

Solution:

Calculation of the factorial takes a lot of time. Thus, a dependency was found that the factorial number has a number of trailing zeros proportional to , where n is the number of trailing zeros. Thus, we need to add the number of times when the factorial number can be divided by .

Number =

The algorithm is shown below:

Answer:

If you received a task where you need to deal with factorial trailing zeroes, then this sample will help you. It contains a clear explanation. We have decided to present this sample because many students who study programming are faced with the problem of trailing zeroes in factorial Java.

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