Write a C, C++ program to print prime numbers between 1 to 100. In this tutorial, we are going to write a C, C++ code to print prime numbers between 1 to 100.

A prime number is a number that is greater than 1, and there are only two whole-number factors 1 and itself.

Example of prime numbers are - 2, 3, 5, 7, 11, 13, 17, 19, 23 etc.

C Program to Check whether a Number is Prime or not

C, C++ Program to Check whether a Number is prime or not

Sorting algorithms and their time complexity

Let's write a c code to print prime numbers between 1 to 100.

Alternatively, Take the value of n as an input from a user and use the same logic which we used while printing prime numbers between 1 to 100.

Program to print 1 to 100 numbers using loop

Programming questions on Arrays

### What is a Prime number?

A prime number is a number that is greater than 1, and there are only two whole-number factors 1 and itself.

Example of prime numbers are - 2, 3, 5, 7, 11, 13, 17, 19, 23 etc.

C Program to Check whether a Number is Prime or not

C, C++ Program to Check whether a Number is prime or not

Sorting algorithms and their time complexity

## C Program to Print Prime Numbers Between 1 to 100

Let's write a c code to print prime numbers between 1 to 100.

#include<stdio.h> int main() { int i=2, j, p; while(i <= 100){ /* Initially P is 1. */ p = 1; for(j = 2; j < i; j++){ /* Check if it is divisible by any other number, other than 1 or itself. */ if(i % j == 0) { p = 0; } } if(p) { printf("%d ",i); } i++; } return 0; }

**Output :**

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97

## C++ Program to Print Prime Numbers Between 1 to 100

#include<iostream> using namespace std; int main() { int i = 2, j, p; while(i <= 100){ /* Initialize P */ p = 1; for(j = 2; j < i; j++){ /*if it is divisible by any other number, other than 1 or itself then it's not a prime number. */ if(i % j == 0){ /* If it's not a prime, Set p=0 . */ p = 0; } } /* Print prime number. */ if(p) { cout << i << " "; } i++; } return 0; }This program illustrated, how to print prime numbers between 1 to 100. There is also a better way to print prime numbers between 1 to n using sieve algorithm.

Alternatively, Take the value of n as an input from a user and use the same logic which we used while printing prime numbers between 1 to 100.

Program to print 1 to 100 numbers using loop

Programming questions on Arrays

how can i check if a number from the user is between 1 and 100 inclusive.

ReplyDeleteSimple way is to ask to user for entering minimum limit and maximum limit of number between which prime numbers need to be printed.

DeleteI need a c++ program to print all non-prime numbers less than 100 and to check whether each of these numbers is a perfect square.

ReplyDelete1.In the above post instead of

Deleteif(p) {

cout << i << " ";

}

simply change it to

if(!p) {

cout << i << " ";

}

and you will get non-prime numbers.

2.http://www.cprogrammingcode.com/2016/04/program-to-check-perfect-square-in-c-c.html