Answer Posted / srinivasu

i have written in java
import java.io.*;
public class ThreeDigit
{
public static void main(String args[])throws IOException
{
double t=1;
DataInputStream ds=new DataInputStream(System.in);
System.out.print("Enter Three Digit Number");
int n=Integer.parseInt(ds.readLine());
int k=0;
for(int i=1;i<=n;i++)
{
t=t*2;
}
t=t+1;
int x=2;
do
{
if(t%x==0)
{
System.out.println("The 2^n+1 of given 3 digit
number" +t+ "is not prime");
System.out.println("The factors for" +t+ "are:");
for(int p=1;p<=t;p++)
{
if(t%p==0)
{k++;
System.out.println("The"+k+"factor is"+p);
}
}
System.exit(0);
}
x++;
}while(x<t);
System.out.println("The 2^n+1 number"+t+"is prime");
System.exit(0);
}
}

to find the closest pair

2326

---

how to execute a program using if else condition and the output should enter number and the number is odd only...

2303

---

What is an expression?

1059

---

What are header files and explain what are its uses in c programming?

1133

---

What does %c do in c?

994

---

Can you explain the four storage classes in C?

1125

---

What is void main ()?

1075

---

What is a good way to implement complex numbers in c?

1053

---

When should I declare a function?

1135

---

What is a double c?

989

---

Write the test cases for checking a variable having value in range -10.0 to +10.0?

2321

---

please explain clearly about execution of c program in detail,in which stage are the printf sacnf getting into exeecutable code

2184

---

What is call by value in c?

1008

---

Are pointers integers in c?

1077

---

1) write a program to generate 1st n fibonacci prime numbers using Nested if 2) write a program to generate twin prime numbers from m to n using nested if 3) write a program to check whether a given integer is a strong number or not using nested if 4) Write a program to generate prime factors of a given integer using nested if 5)write a program to generate prime numbers from m to n using nested if 6)write a program to generate perfect numbers from m to n using nested if 7)write a program to generate the pallindromes from m to n using neste if 8)write a program to generate armstrong numbers from m to n using nested if 9)write a program to generate strong numbers from m to n using nested if

4605

---