CodingBat primeFactors

primeFactors

First, solve this problem: https://codingbat.com/prob/p202617 and then come to the current problem. Define a function that when passed an integer, returns the number of prime factors of the number. Note that if a number is a prime, it has only one prime factor: the number itself.

primeFactors(73) → 1
primeFactors(77) → 2
primeFactors(2147483641) → 2

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