- C++ Programming Examples
- C++ Programming Examples
- C++ Hello World
- C++ Get Input
- C++ Print Integer
- C++ Add Two Numbers
- C++ Add Sub Mul Div
- C++ Add Digits
- C++ Find Average Perc
- C++ Find Arithmetic Mean
- C++ Sum of n Natural Numbers
- C++ Sum of n Numbers
- C++ Area Perimeter of Square
- C++ Area Perimeter of Rectangle
- C++ Area Perimeter of Triangle
- C++ Area Circum of Circle
- C++ Find Simple Interest
- C++ Fahrenheit to Celsius
- C++ Celsius to Fahrenheit
- C++ Print Prime Numbers
- C++ Reverse a Number
- C++ Swap Two Numbers
- C++ Print Multiplication Table
- C++ Find Factorial of Number
- C++ Find Factors of Number
- C++ Find HCF & LCM
- C++ Make Calculator
- C++ Count Digits in Number
- C++ Sum of First & Last Digit
- C++ Product of Digits of Number
- C++ Sum of Squares of Digits
- C++ Interchange Digits of Number
- C++ if else Programs
- C++ Check Even or Odd
- C++ Check Prime or Not
- C++ Check Alphabet or Not
- C++ Check Vowel or Not
- C++ Check Leap Year or Not
- Check Reverse equal Original
- C++ Check Perfect Number
- C++ Check Palindrome or Not
- C++ Check Armstrong or Not
- C++ Divisibility Test
- C++ Find Wage of Labor
- C++ Find Discounted Price
- C++ Find Shipping Charge
- C++ Find Telephone Bills
- C++ Calculate Student Grade
- C++ Largest of Two Numbers
- C++ Largest of Three Numbers
- C++ Number Conversion
- C++ Decimal to Binary
- C++ Decimal to Octal
- C++ Decimal to Hexadecimal
- C++ Binary to Decimal
- C++ Binary to Octal
- C++ Binary to Hexadecimal
- C++ Octal to Decimal
- C++ Octal to Binary
- C++ Octal to Hexadecimal
- C++ Hexadecimal to Decimal
- C++ Hexadecimal to Binary
- C++ Hexadecimal to Octal
- C++ Pattern Programs
- C++ Pattern Programs
- C++ Print Diamond Pattern
- C++ Print Floyd's Triangle
- C++ Print Pascal's Triangle
- C++ Array Programs
- C++ 1D Array Program
- C++ Linear Search
- C++ Binary Search
- Find Largest Element in Array
- Find Smallest Element in Array
- Find Second Largest Element
- Find Second Smallest Element
- C++ Sum of All Elements
- C++ Multiply All Elements
- C++ Element on Even Position
- C++ Element on Odd Position
- C++ Print Even Numbers in Array
- C++ Print Odd Numbers in Array
- C++ Count Even/Odd Numbers
- C++ Sum of Even/Odd Numbers
- C++ Count Positive Negative Zero
- C++ Reverse an Array
- C++ Insert Element in Array
- C++ Delete Element from Array
- C++ Merge two Arrays
- C++ Bubble Sort
- C++ Selection Sort
- C++ Insertion Sort
- C++ Common Elements
- C++ 2D Array Programs
- C++ Add Two Matrices
- C++ Subtract Two Matrices
- C++ Transpose Matrix
- C++ Multiply Two Matrices
- C++ 3D Array Programs
- C++ String Programs
- C++ Print String
- C++ Find Length of String
- C++ Compare Two Strings
- C++ Copy String
- C++ Concatenate String
- C++ Reverse a String
- C++ Delete Vowels from String
- C++ Delete Word from String
- C++ Count Character in String
- C++ Count Word in String
- C++ Frequency of Word
- C++ Remove Spaces from String
- C++ Sort a String
- C++ Uppercase to Lowercase
- C++ Lowercase to Uppercase
- C++ Swap Two Strings
- C++ Check Anagram or Not
- C++ Capitalize All Words in String
- C++ Capitalize Specific Character
- C++ Get Numbers from String
- C++ File Programs
- C++ Read a File
- C++ Write Content to File
- C++ Append Data in File
- C++ Read & Display File
- C++ Copy a File
- C++ Merge Two Files
- Count Characters, Words in File
- C++ Capitalize All Words in File
- C++ List Files in Directory
- C++ Delete a File
- C++ Encrypt & Decrypt a File
- C++ Misc Programs
- C++ Print ASCII Value
- C++ Add Binary Numbers
- C++ Generate Random Numbers
- C++ Print Smiling Face
- C++ Days into Years, Months
- Add Two Numbers using Pointer
- C++ Print Fibonacci Series
- Generate Armstrong Numbers
- C++ Find nCr and nPr
- C++ Get IP Address
- C++ Print Date/Time
- C++ Shutdown, Restart Computer
- C++ Programming Tutorial
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- All Test List
C++ Program to Check whether a Number is Divisible by Another Number
This article provides you some programs in C++ that is used to check whether a number (entered by user) is divisible by another number (also entered by user) or not. These are the programs included:
- Check number is divisible by another number using if-else
- using user-defined function
- using class
- Divisibility test program with multiple numbers in a given range entered by user at run-time
Check Number is Divisible by Another using if-else
The question is, write a C++ program that receives two numbers as input to check whether the second number divides first without leaving any remainder or not. The answer to this question, is the program given below:
#include<iostream> using namespace std; int main() { int numerator, denominator; cout<<"Enter a Number (Numerator): "; cin>>numerator; cout<<"Enter another Number (Denominator): "; cin>>denominator; if(numerator%denominator==0) cout<<endl<<numerator<<" is divisible by "<<denominator; else cout<<endl<<numerator<<" is not divisible by "<<denominator; cout<<endl; return 0; }
The snapshot given below shows the initial output produced by above C++ program on checking whether a number (entered by user) is divisible by another number (also entered by user) or not:
Now enter any two numbers as numerator and denominator to check whether denominator completely divides the numerator (without leaving any remainder, or leaving 0 as remainder) or not. For example, here is its sample run with user input 27 as numerator and 3 as denominator:
Note - The % (modulo) operator gives the remainder. For example, 10%3 gives 1, 20%10 gives 0, 20%7 gives 6.
Therefore, if numerator%denominator gives 0, means that, denominator divides numerator without leaving remainder.
Using User-defined Function
This is the same program as of previous one. That is, this program does the same job of checking whether the first number divides the second number or not. Both the number must be entered by user at run-time of the program:
#include<iostream> using namespace std; int check_div(int, int); int main() { int numerator, denominator, res; cout<<"Enter a Number (Numerator): "; cin>>numerator; cout<<"Enter another Number (Denominator): "; cin>>denominator; res = check_div(numerator, denominator); if(res==1) cout<<endl<<numerator<<" is divisible by "<<denominator; else cout<<endl<<numerator<<" is not divisible by "<<denominator; cout<<endl; return 0; } int check_div(int a, int b) { if(a%b==0) return 1; else return 0; }
Here is its sample run with user input 14 as numerator and 4 as denominator:
In above program, the function check_div() returns 1, if a%b or numerator%denominator gives 0. Otherwise, it returns 0. Based on the return value, the print statement gets performed as shown in the above program.
Using Class
This is another program, also does the same job as of previous two programs, but using different approach. That is, this program uses class and object, an object-oriented feature of C++.
#include<iostream> using namespace std; class CodesCracker { public: int check_div(int, int); }; int CodesCracker::check_div(int a, int b) { if(a%b==0) return 1; else return 0; } int main() { CodesCracker ob; int numerator, denominator, res; cout<<"Enter a Number (Numerator): "; cin>>numerator; cout<<"Enter another Number (Denominator): "; cin>>denominator; res = ob.check_div(numerator, denominator); if(res==1) cout<<endl<<numerator<<" is divisible by "<<denominator; else cout<<endl<<numerator<<" is not divisible by "<<denominator; cout<<endl; return 0; }
This program produces same output as of previous program.
Divisibility Test with Multiple Numbers in a Range
The question is, write a program in C++ that find and prints all the numbers in a given range (entered by user) are divisible by a number (entered by user). The program given below is the answer to this question:
#include<iostream> using namespace std; int main() { int tot, i, arr[100], num, j, arr_div[100]; cout<<"Enter the Size: "; cin>>tot; cout<<"Enter "<<tot<<" Numbers: "; for(i=0; i<tot; i++) cin>>arr[i]; cout<<"Enter a Number to Apply Divisibility Test: "; cin>>num; for(i=0, j=0; i<tot; i++) { if(arr[i]%num==0) { arr_div[j] = arr[i]; j++; } } if(j==0) cout<<"\nAll the numbers are not divisible by "<<num; else { cout<<"\nThese are the numbers divisible by "<<num<<endl; for(i=0; i<j; i++) cout<<arr_div[i]<<" "; } cout<<endl; return 0; }
Here is its sample run with user input, 10 as size, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 as 10 numbers, 2 as number to apply divisibility test with all these given 10 numbers like shown in the snapshot given below:
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