# Circular Prime Program in Java

## A circular prime is a prime number with the property that the number generated at each intermediate step when cyclically permuting its digits will be prime. For example, 1193 is a circular prime, since 1931, 9311 and 3119 all are also prime.

```
import java.util.Scanner;
public class CircularPrime
{
public static void main(String[] args)
{
boolean flag = true;
int n, num, r, c = 0;
Scanner sc = new Scanner(System.in);
System.out.print("Enter number=");
n = sc.nextInt();
num = n;
while (num > 0)
{
r = num % 10;
c++;
num = num / 10;
}
num = n;
for (int i = 1; i <= c; i++)
{
r = num % 10;
num = num / 10;
num = (r * (int) Math.pow(10, c - 1)) + num;
if (!prime(num))
{
flag = false;
break;
}
}
if(flag)
{
System.out.println("Circular Prime");
}
else
{
System.out.println("Not Circular Prime");
}
}
static boolean prime(int n)
{
// TODO code application logic here
int i = 2;
boolean flag = true;
while (n > i)
{
if (n % 2 == 0)
{
flag = false;
break;
}
i++;
}
return flag;
}
}
```

#### Output:

Enter number=137 Circular Primeb. tech. bca icse java java tutorials learn java mca programs

### Frequently Asked Questions

##### What is Circular Prime?

A circular prime is a prime number with the property that the number generated at each intermediate step when cyclically permuting its digits will be prime. For example, 1193 is a circular prime, since 1931, 9311 and 3119 all are also prime.

##### What is Circular Prime in Java?

A circular prime is a prime number with the property that the number generated at each intermediate step when cyclically permuting its digits will be prime. For example, 1193 is a circular prime, since 1931, 9311 and 3119 all are also prime.

**Recent Posts**

- Print Capital String Program in Java December 31, 2021
- Fascinating Number Program in Java November 14, 2021
- Evil Number Program in Java November 14, 2021
- Insertion Sort Program in Java November 7, 2021
- Deleting Element From Array Program in Java November 7, 2021
- Adding Element In Array Program in Java November 7, 2021
- Capricorn or Kaprekar Number Program in Java October 16, 2021
- LCM and HCF of two numbers Program in C October 6, 2021
- Find day of week from a given date Program in C October 6, 2021
- Difference of two dates in years, months, days Program in C October 6, 2021
- Check whether a date is valid or not Program in C October 6, 2021
- Menu driven Program in C October 6, 2021
- Vowel or consonant Program in C October 6, 2021
- Perform arithmetic calculations on integers Program in C October 6, 2021
- Multiply two positive numbers without using "*" operator October 6, 2021
- Count digits Program in C October 6, 2021
- Product of digits Program in C October 6, 2021
- Print numbers from 1 to 10 using while loop Program in C October 6, 2021
- Find out the grade of a student Program in C October 6, 2021
- Binary Search Program in C October 2, 2021