Package g0801_0900.s0866_prime_palindrome

Class Solution

java.lang.Object
g0801_0900.s0866_prime_palindrome.Solution
public class Solution extends Object
866 - Prime Palindrome.

Medium

Given an integer n, return the smallest prime palindrome greater than or equal to n.

An integer is prime if it has exactly two divisors: 1 and itself. Note that 1 is not a prime number.

  • For example, 2, 3, 5, 7, 11, and 13 are all primes.

An integer is a palindrome if it reads the same from left to right as it does from right to left.

  • For example, 101 and 12321 are palindromes.

The test cases are generated so that the answer always exists and is in the range [2, 2 * 108].

Example 1:

Input: n = 6

Output: 7

Example 2:

Input: n = 8

Output: 11

Example 3:

Input: n = 13

Output: 101

Constraints:

  • 1 <= n <= 108

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • primePalindrome

      public int primePalindrome(int n)