Question

find the number of zeros in 40!
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Answer 1

Step-by-step explanation:

Here is the answer to questions like: What is the number of zeros on the end of 40 factorial? What is the factorial of 40? What is the last digits of factorial of 40? How many trailing zeros in 40 factorial? How many digits are there in 40 factorial? Use the factorial calculator below to find the factorial of any real number between 0 and 10,000.

Answer 2

Given:

find the number of zeros in 40!

Solution:

Understand that a pair $\[2 \times 5\]$ will generate a zero in the last,

Therefore,

$\[\begin{array}{l} = \frac{{40}}{5} + \frac{{40}}{{25}}\\ = 8 + 1({\rm{only}}\,{\rm{quotient)}}\\{\rm{ = 9}}\end{array}\]$

Hence, the last number of zeroes in $\[40!\]$ is 9.