Write a recursive function in C programming to print all natural numbers between 1 to n. How to print all natural numbers from 1 to n using recursion in C program. Write a function in C program to display all natural numbers between a given range using the concept of recursion .

Input n: 10

Output: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

If you have gone through my earlier post how to print all natural numbers using loop then deriving the logic of this program wouldn't be difficult.

Happy coding ;)

**Example:**Input n: 10

Output: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

### Required knowledge

Basic C programming, Function, RecursionIf you have gone through my earlier post how to print all natural numbers using loop then deriving the logic of this program wouldn't be difficult.

### Program to print natural numbers from 1 to n using recursion

/** * C program to print all natural numbers from 1 to n using recursion */ #include <stdio.h> /* Function declaration */ void printNaturalNumber(int lowerLimit, int upperLimit); int main() { int limit; printf("Print all natural numbers from 1 to : "); scanf("%d", &limit); printf("All natural numbers from 1 to %d are: ", limit); printNaturalNumber(1, limit); return 0; } /** * Recursively prints all natural number between the given range. */ void printNaturalNumber(int lowerLimit, int upperLimit) { if(lowerLimit > upperLimit) return; printf("%d, ", lowerLimit); //Recursively calls the function to print next number printNaturalNumber(lowerLimit+1, upperLimit); }

Output

Print all natural numbers from 1 to : 100

All natural numbers from 1 to 100 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100,

All natural numbers from 1 to 100 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100,

Happy coding ;)

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