How can i write a code in c# to take a number from the user and then find all t

How can i write a code in c# to take a number from the user
and then find all the prime numbers till the number entered
by the user.

Question Posted / smartraj4ever

4 Answers
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How can i write a code in c# to take a number from the user and then find all the prime numbers til..

Answer / kumar gaurav

void main()
{
int num=0, i=0;
printf("Enter the number to ckeck");
scanf("%d",&num);
for (i=2;i<num;i++)
{
if (num%i==0)
{
printf("Number is not prime");
break;
}
}
if (i==num)
{
printf("Number is prime");
}
getch();
}

Is This Answer Correct ?

10 Yes

1 No

How can i write a code in c# to take a number from the user and then find all the prime numbers til..

Answer / shuklaamit565

using System;
class Test2
{
public static void Main()
{
int prime,num=100;

for(int i = 3; i <num; i++)
{
prime = 1;
for(int n = 2; n <= i - 1;
n++)
{
if(i % n == 0)
{
prime = 2;
}
}
if(prime==1)
{
Console.WriteLine( "
is prime :"+i);
}
}
}
}

Is This Answer Correct ?

0 Yes

0 No

How can i write a code in c# to take a number from the user and then find all the prime numbers til..

Answer / guest

for(i=0;i<n;i++)
{
if(i==1||i==2||i==3||i==5||i==7)
{
printf("No is prime");
}
else if(i%2==0&&i%3==0&&i%5==0&&i%7==0)
{
printf("No is prime");
}
else
printf("No is not prime");
}

Is This Answer Correct ?

5 Yes

9 No

How can i write a code in c# to take a number from the user and then find all the prime numbers til..

Answer / anjali

while(num>0)
{
if(num%2==1)
printf("num is prime value");
}

Is This Answer Correct ?

1 Yes

10 No

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