C Program to Find Power of a Number

Flow Control
If-else Statement in C
Programs on if-else
Switch Case in C
Switch case Programs
Conditional Operator
While loop in C
Do-while loop in C
While vs do-while
For loop in C
Break keyword in C
Continue keyword in C
Break vs Exit in C
Goto keyword in C
☕️ Flow Control Programs
Largest in 3 Numbers
Find Grade of student
Find the absolute value
Vowel or Consonant
Leap Year Program
Simple calculator in C
Check Odd or Even 
Roots of Quadratic Equation
Find Reverse of Number
Factors of a number in C
Generate Multiplication table
Find Power of a Number
Find GCD and LCM
Find factorial of Number
Count Number of Digits
Sum of digits in Number
Sum of N Natural Numbers
Sum of Squares of Natural No.
Find Sum of Odd Numbers
Find the Sum of Series
Find Fibonacci series in C
Sum of the Fibonacci series
Sum until enters +ve numbers
Sum of max 10 no. & Skip -ve
☕️ C Conversion Programs
Celsius to Fahrenheit
Fahrenheit to Celsius
Decimal ↔ Binary
Decimal ↔ Octal
Octal ↔ Binary in C
☕️ Number Programs in C
Prime Number in C
Strong Number in C
Krishnamurthy Number
Neon Number in C
Palindrome number
Perfect Number in C
Armstrong Number
☕️ Pattern Programs in C
Pattern programs in C
Printing pattern using loops
Floyd’s triangle Program
Pascal Triangle Program
Pyramid Star Pattern in C
Diamond Pattern Programs
Half Diamond pattern in C
Print Diamond Pattern
Hollow Diamond Pattern
Diamond Pattern of Numbers

Power of any number bn given as b*b*…..*b (n-times). Here b is called base and n is called the exponent. Here we will write the C program to find the power of a number.

Example:-

22 = 2*2 = 4
33 = 3*3*3 = 27
53 = 5*5*5 = 125

Write a c program to find power of a number using while loops. the base number (>0) and exponent (>=0) is taken from the test cases.

C Program to Find Power of a Number using while loop

 #include<stdio.h>
 int main()
 {
     int base, exponent;
     long power=1;

     printf("Enter base and Exponent: ");
     scanf("%d %d",&base,&exponent);

     while(exponent!=0)
     {
         power *= base; //power= power  * base
         exponent--;
     }

     printf("Result = %ld\n", power);

     return 0;
 }

Output:-

Enter base and Exponent: 3 4
Result = 81

Explanation:-

At start base=3, exponent=4
from while loop,
4!=0 true power=1*3=3 and exponent=4-1=3
3!=0 true power=3*3=9 and exponent=3-1=2
2!=0 true power=9*3=27 and exponent=2-1=1
1!=0 true power=27*3=81 and exponent=1-1=0
0!=0 false 
Finally power = 81

In the while loop, we can also use increment operators instead of the decrement operator.

C program to find x power y using for loop

Below is the C program to calculate power of a Number using for loop.

 #include<stdio.h>
 int main()
 {
     int base, exponent, i;
     long power=1;

     printf("Enter base and Exponent: ");
     scanf("%d %d", &base, &exponent);

     for(i=1;i<=exponent;i++)
     {
         power *= base; // power=power*base
     }

     printf("Result = %ld\n",power);

     return 0;
 }

Output:-

Enter base and Exponent: 2 3
Result = 8
Enter base and Exponent: 25 6
Result = 244140625

Explanation:- 

At start base=2, exponent=3
i=1; 1<=3 true power=1*2=2 and i++=1+1=2
i=2; 2<=3 true power=2*2=4 and i++=2+1=3
i=3; 3<=3 true power=4*2=8 and i++=3+1=4
i=4 4<=3 false
Finally power=8

Here we used the increment operator (i++), the problem also can be solved using decrement operator (i–) try it yourself.

C Program to Find Power of a Number using pow() function

Calculation of  Power is required many times. So, for fast and easy purposes pow() function is defined under standard library function math.h

 #include<stdio.h>
 #include<math.h>
 int main()
 {
     int base, exponent;
     long power;

     printf("Enter base and Exponent: ");
     scanf("%d %d", &base, &exponent);

     power = pow(base,exponent);

     printf("Result = %ld",power);
     return 0;
 }

Output:-

Enter base and Exponent: 2 3
Result = 8

We can do the same task using Recursion also:- Calculate Power of a Number using Recursion

If you are using Linux/Unix OS and getting an error from using pow() function then read it “undefined reference to sqrt (or other mathematical functions)” even include math.h header

If you enjoyed this post, share it with your friends. Do you want to share more information about the topic discussed above or do you find anything incorrect? Let us know in the comments. Thank you!

Flow Control
If-else Statement in C
Programs on if-else
Switch Case in C
Switch case Programs
Conditional Operator
While loop in C
Do-while loop in C
While vs do-while
For loop in C
Break keyword in C
Continue keyword in C
Break vs Exit in C
Goto keyword in C
☕️ Flow Control Programs
Largest among 3 Numbers
Find Grade of student
Find the absolute value
Check Vowel or Consonant
Leap Year Program
Simple calculator in C
Check Odd or Even 
Roots of Quadratic Equation
Find Reverse of Number
Factors of a number in C
Generate Multiplication table
Find Power of a Number
Find GCD and LCM
Find factorial of Number
Count Number of Digits
Sum of digits in Number
Sum of N Natural Numbers
Sum of Squares of Natural No.
Find Sum of Odd Numbers
Find the Sum of Series
Find Fibonacci series in C
Sum of the Fibonacci series
Sum until enters +ve numbers
Sum of max 10 no. & Skip -ve
☕️ C Conversion Programs
Celsius to Fahrenheit
Fahrenheit to Celsius
Decimal ↔ Binary
Decimal ↔ Octal
Octal ↔ Binary in C
☕️ Number Programs in C
Prime Number in C
Strong Number in C
Krishnamurthy Number
Neon Number in C
Palindrome number
Perfect Number in C
Armstrong Number
☕️ Pattern Programs in C
Pattern programs in C
Printing pattern using loops
Floyd’s triangle Program
Pascal Triangle Program
Pyramid Star Pattern in C
Diamond Pattern Programs
Half Diamond pattern in C
Print Diamond Pattern
Hollow Diamond Pattern
Diamond Pattern of Numbers

Leave a Comment

Your email address will not be published. Required fields are marked *