For given positive integer n, take factorial of that number. How many trailing zeros does it have?
Example: factorial(11) = 39916800
Its last zero-digit count is 2.
Optional: Can you make an efficient algorithm for a very large n?
Vectorize the digits of an Integer
Try 1.5.4: Celsius to Fahrenheit
Find the dimensions of a matrix
Integer or Float?
The last non-zero digit of a factorial
Number of even divisors of a given number
Number of paths on a 3d grid
Fractal: area and perimeter of Koch snowflake
Make a rainbow matrix (follow-up to checkerboard matrix)
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office