Problem 56418. Easy Sequences 78: Trailing Zeros of Factorial Numbers at any Base

• Created by Ramon Villamangca

×

Like (1)

Difficulty:

(3)

Rate

• Solve Later   
• Add To GroupÂ

Given an integer n and a number base b, write a function that calculates the number of trailing zeros of the factorial of n when written in base-b.

For example, for and , the function should return 5, because:

>> dec2base(factorial(15),4)

>> '103001313131311200000'

For and , the function should return 4.

>> dec2base(factorial(10),12)

>> '1270000'

Solve

Solution Stats

37.5% Correct | 62.5% Incorrect

• 8 Solutions
• 3 Solvers

Last Solution submitted on Feb 19, 2023

Last 200 Solutions

Solution Comments

ANNOUNCEMENT ×

Registration Now Open for MathWorks AUTOMOTIVE CONFERENCE 2025

Hello Community, We're excited to announce that registration is now open for the...

Problem Recent Solvers3

Suggested Problems

• Implement a ROT13 cipher

  1680 Solvers

• Find state names that start with the letter N

  1304 Solvers

• Check to see if a Sudoku Puzzle is Solved

  328 Solvers

• Find the nearest integer

  352 Solvers

• Create a matrix with difference of each row of input matrix

  75 Solvers

More from this Author116

• Easy Sequences 91: Generalized McCarthy-91 Recursive Function

  2 Solvers

• Easy Sequences 115: Integral involving square root, floor, and round functions

  1 Solvers

• Easy Sequences 32: Almost Pythagorean Triples

  4 Solvers

• Easy Sequences 57: "Pretty-gorean" Triangles?

  4 Solvers

• Easy Sequences 39: Perfect Squares in Pascal's Triangle

  6 Solvers