# C Program For Reverse A Number Using While Loop

Problem :- Write a C Program For Reverse A given Number Using While Loop Ex. if you enter 123456789 then reverse number will be 987654321 .

Logic :- Logic for reverse a digit is simple lets take a example 12345 now first we divide a number with 10 so we get reminder 5 store the reminder and then and using this logic we multiply rev = rev * 10 + rem and again divide the number with 10 ,now number is 1234 and repeat a process again and again until number become greater or equal 1.
If you Understood then try to solve given problem .

Try Yourself C++ Program To Print A Reverse Number Using Loop

Solution :-

#include<stdio.h>

int main()
{
int num, rem, rev = 0;

printf("Enter Any Number to be Reversed :\n");
scanf("%d", &num);

while (num >= 1)
{
rem = num % 10;
rev = rev * 10 + rem;
num = num / 10;
}

printf("\nReversed Number : %d", rev);
return (0);
}

Output:-

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#### post written by: Ghanendra Yadav

Hi, I’m Ghanendra Yadav, SEO Expert, Professional Blogger, Programmer, and UI Developer. Get a Solution of More Than 500+ Programming Problems, and Practice All Programs in C, C++, and Java Languages. Get a Competitive Website Solution also Ie. Hackerrank Solutions and Geeksforgeeks Solutions. If You Are Interested to Learn a C Programming Language and You Don't Have Experience in Any Programming, You Should Start with a C Programming Language, Read: List of Format Specifiers in C.