Finding Prime Factors of a number
Detailed guide and Python implementation for the 'Finding Prime Factors of a number' problem.
Problem Statement
Write a function prime_factors(n) that takes a positive integer n (n >= 2) and returns a list of its prime factors in ascending order. If a prime factor appears multiple times, include it multiple times in the list.
- •2 <= n <= 10^6
Examples
n = 12
[2, 2, 3]
12 = 2 × 2 × 3. The prime factors are 2, 2, and 3.
n = 7
[7]
7 is itself a prime number.
n = 60
[2, 2, 3, 5]
60 = 2 × 2 × 3 × 5.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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