Class Solution


  • public class Solution
    extends Object
    1952 - Three Divisors.

    Easy

    Given an integer n, return true if n has exactly three positive divisors. Otherwise, return false.

    An integer m is a divisor of n if there exists an integer k such that n = k * m.

    Example 1:

    Input: n = 2

    Output: false

    Explantion: 2 has only two divisors: 1 and 2.

    Example 2:

    Input: n = 4

    Output: true

    Explantion: 4 has three divisors: 1, 2, and 4.

    Constraints:

    • 1 <= n <= 104
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • isThree

        public boolean isThree​(int n)