Example:
Input upper limit to print natural numbers: 10
Output natural numbers from 1 to 10: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Also view this program using other programming methods:
C program to print all natural numbers from 1 to n using for loop.
C program to print all natural numbers from 1 to n using recursion.
Required knowledge
Basic C programming, LoopProgram to print natural numbers using while loop
/** * C program to print all natural numbers from 1 to n using while loop */ #include <stdio.h> int main() { int i, n; /* * Reads a number from user */ printf("Print all natural numbers from 1 to : "); scanf("%d", &n); /* * Prints all natural number from 1 to n */ i=1; while(i<=n) { printf("%d\n", i); i++; } return 0; }
Note: If you want to print natural numbers in range then you need to initialize the loop counter with some variable such as:
i=start; while(i<=n) { printf("%d\n", i); i++; }
Output
Print all natural numbers from 1 to : 100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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51
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60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
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79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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91
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93
94
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96
97
98
99
100
Happy coding ;)
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