Package g1901_2000.s1952_three_divisors

Class Solution

java.lang.Object
g1901_2000.s1952_three_divisors.Solution
public class Solution extends java.lang.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 Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    isThree(int n)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • isThree

      public boolean isThree(int n)