Question

Given an integral input n, print all the numbers from 1 to n which are prime.

Example 1: Input: n=5 Output 23 5

Example 2:

Input: n=10 Output: 2357 9

Hint: Try dividing it into smaller sub-problems, just like we did in class :P

please help me​

Answer 1

Explanation:

SIMPLE PROGRAM IN PYTHON!

C = 1

FOR I IN RANGE(2,N):

IF I%2!=0:

print("__","Prime no",I)

IF C==1:

PRINT("NOT PRIME")

Answer 2

Question:-

Write a program to print all the prime numbers between 1 to n.

Solution:-

import java.util.*;

class Prime

{

static boolean isPrime(int n)

{

int c=0;

for(int i=1;i<=n;i++)

{

if(n%i==0)

c++;

}

return c==2;

}

public static void main(String args[])

{

int n, i;

Scanner sc = new Scanner(System.in);

System.out.print("Enter n: ");

n=sc.nextInt();

System.out.print("Prime numbers are: ");

for(i=1;i<=n;i++)

{

if(isPrime(i))

System.out.print(i+" ");

}

}

}