What is a pal prime number?

In mathematics, a palindromic prime (sometimes called a palprime) is a prime number that is also a palindromic number. The first few decimal palindromic primes are: 2, 3, 5, 7, 11, 101, 131, 151, 181, 191, 313, 353, 373, 383, 727, 757, 787, 797, 919, 929, … (sequence A002385 in the OEIS)

What is PalPrime number in Java?

The PalPrime number is a special positive number which is also known as the Palindromic Prime number. A number is said to be a palindromic prime if the number is a palindrome as well as a prime. 353 is also a prime number because it follows the properties of palindrome and prime number both. …

Which is the palindromic number?

A palindromic number (also known as a numeral palindrome or a numeric palindrome) is a number (such as 16461) that remains the same when its digits are reversed. The palindromic primes are 2, 3, 5, 7, 11, 101, 131, 151, (sequence A002385 in the OEIS).

What is Emirp number in Java?

A number is called an emirp number if we get another prime number on reversing the number itself. In other words, an emirp number is a number that is prime forwards or backward. It is also known as twisted prime numbers.

What is Automorphic number in Java?

A number is called an automorphic number if and only if the square of the given number ends with the same number itself. For example, 25, 76 are automorphic numbers because their square is 625 and 5776, respectively and the last two digits of the square represent the number itself.

What is Niven number in Java?

Harshad Number : A Harshad number (or Niven number), is an integer (in base 10) that is divisible by the sum of its digits.

How do I find my Emirp number?

Steps to find Emirp Number

1. Read or initialize a number (n).
2. First, check the given number (n) is prime or not. If not, break the execution and exit. If prime, find the reverse (r) of the given number (n).
3. Check the reverse number (r) is prime or not. If not, print number (n) is not emirp.

What is palprime number Java?

PalPrime Number Java The PalPrime number is a special positive number which is also known as the Palindromic Prime number. A number is said to be a palindromic prime if the number is a palindrome as well as a prime.

What is a palindromic prime number?

In binary, the palindromic primes include the Mersenne primes and the Fermat primes. All binary palindromic primes except binary 11 (decimal 3) have an odd number of digits; those palindromes with an even number of digits are divisible by 3.

How to check if a number is prime or palprime in Python?

Get a number from the user to check whether it is PalPrime or not. We store that number in a temporary variable so that the original value remains the same. We use the “for loop” to check whether the number is prime or not. We also check whether the number is palindrome or not.

Is 252 a palprime number?

252 is not a PalPrime number because after reversing the number, the number retains its original value, but it is not only divisible by one or itself. 353 is also a prime number because it follows the properties of palindrome and prime number both. In order to check whether the number is PalPrime or not, we have to follow the following steps: