Answer Posted / gnanasekaran

int main()
{
int i,j,n,f=0;
printf("Enter the length\n");
scanf("%d",&n);
for(i=2;i<=n/2;i++)
{
for(j=2;j<i;j++)
{
if((i%j)==0)
{
f=1;
break;
}
f=0;
}
if(f==0)
printf("%d ",i);
}
}

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