Class Solution


  • public class Solution
    extends Object
    2507 - Smallest Value After Replacing With Sum of Prime Factors.

    Medium

    You are given a positive integer n.

    Continuously replace n with the sum of its prime factors.

    • Note that if a prime factor divides n multiple times, it should be included in the sum as many times as it divides n.

    Return the smallest value n will take on.

    Example 1:

    Input: n = 15

    Output: 5

    Explanation: Initially, n = 15.

    15 = 3 * 5, so replace n with 3 + 5 = 8.

    8 = 2 * 2 * 2, so replace n with 2 + 2 + 2 = 6.

    6 = 2 * 3, so replace n with 2 + 3 = 5.

    5 is the smallest value n will take on.

    Example 2:

    Input: n = 3

    Output: 3

    Explanation: Initially, n = 3. 3 is the smallest value n will take on.

    Constraints:

    • 2 <= n <= 105
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • smallestValue

        public int smallestValue​(int n)