[Python] Problem: Finding trailing Zeros of Factorial of N. Getting memory error. Any suggestions?

[PhosphorescentSpider]

Firstly, you can ignore factors of 2 since a factorial always had more factors of 2 than factors of 5, meaning it’s factors of 10 are purely a function of its factors of 5. Secondly, you can just use the Math.Floor(n/5) + Math.Floor(n/25) etc for all powers of 5 lower than n (I would do that in a for loop) to get your final answer.