C program to find or calculate power of a number; Through this tutorial, we will learn how to find or calculate power of a number in the c program using for loop, while loop, and function.

## Algorithm and Programs to Find the Power of a Number in C

- Algorithm to Find the Power of a Number
- C Program to Find the Power of a Number using Pow() Function
- C Program to Find the Power of a Number using For Loop
- C Program to Find the Power of a Number using While Loop

### Algorithm to Find the Power of a Number

Use the following algorithm to write a program to find power of a number; as follows:

- Step 1: Start Program
- Step 2: Read the base and exponent number from user and store into it in variables
- Step 3: Find the power of a number using the for loop or while loop or pow() function
- Step 4: Print power of a number
- Step 5: Stop Program

### C Program to Find the Power of a Number using Pow() Function

#include <math.h> #include <stdio.h> int main() { double base, exp, result; printf("Enter a base number: "); scanf("%lf", &base); printf("Enter an exponent: "); scanf("%lf", &exp); // calculates the power result = pow(base, exp); printf("%.1lf^%.1lf = %.2lf", base, exp, result); return 0; }

**The output of the above c program; as follows:**

Enter a base number: 10 Enter an exponent: 2 10.0^2.0 = 100.00

### C Program to Find the Power of a Number using For Loop

/** * C program to find power of any number using for loop */ #include <stdio.h> int main() { int base, exponent; long long power = 1; int i; /* Input base and exponent from user */ printf("Enter base: "); scanf("%d", &base); printf("Enter exponent: "); scanf("%d", &exponent); /* Multiply base, exponent times*/ for(i=1; i<=exponent; i++) { power = power * base; } printf("%d ^ %d = %lld", base, exponent, power); return 0; }

**The output of the above c program; as follows:**

Enter base: 10 Enter exponent: 2 10 ^ 2 = 100

### C Program to Find the Power of a Number using While Loop

#include <stdio.h> int main() { int i = 1, Number, Exponent; long Power = 1; printf("\n Enter base Number : "); scanf(" %d", &Number); printf("\n Enter an Exponent Number: "); scanf(" %d", &Exponent); while(i <= Exponent) { Power = Power * Number; i++; } printf("\n The Final result of %d Power %d = %ld", Number, Exponent, Power); return 0; }

**The output of the above c program; as follows:**

Enter base Number : 10 Enter an Exponent Number: 2 The Final result of 10 Power 2 = 100