- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP

- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who

Here we will see how to check a number is divisible by 2, 3 and 5 or not. In this case the number is very large number. So we put the number as string.

A number will be divisible by 2, 3 and 5 if that number is divisible by LCM of 2,3 and 5. So the LCM of 2, 3, 5 is 30. We have to check the number is divisible by 30 or not. A number is divisible by 30 when it is divisible by 10 (last digit is 0) and divisible by 3 (sum of all digits is divisible by 3)

#include <bits/stdc++.h> using namespace std; bool isDiv30(string num){ int n = num.length(); if(num[n - 1] != '0') return false; long sum = accumulate(begin(num), end(num), 0) - '0' * n; if(sum % 3 == 0) return true; return false; } int main() { string num = "353730746028908374890"; if(isDiv30(num)){ cout << "Divisible"; } else { cout << "Not Divisible"; } }

Divisible

- Related Questions & Answers
- Check if a large number is divisible by 5 or not in C++
- Check if a large number is divisible by 3 or not in C++
- Check if a large number is divisible by 3 or not in java
- Check if a large number is divisible by 11 or not in C++
- Check if a large number is divisible by 25 or not in C++
- Check if a large number is divisible by 75 or not in C++
- Check if a large number is divisible by 8 or not in C++
- Check if a large number is divisible by 9 or not in C++
- Check if a large number is divisible by 13 or not in C++
- Check if a large number is divisible by 11 or not in java
- Check if any large number is divisible by 17 or not in Python
- Check if any large number is divisible by 19 or not in Python
- Check if a number is divisible by 23 or not in C++
- Check if a number is divisible by 41 or not in C++
- Check if a large number is divisible by 20 in C++

Advertisements