I want you to pretend that we are working on a research paper about how to identify if someone might have the coronavirus infection (COVID-19) without vaccination and is only able to access their GP. I have some text with typos and grammar mistakes, can you fix them? I'm going to show you how to develop a model for predicting the number of COVID-19 cases that will happen in a given week based on previous data. You need to make it as complex as possible by taking into account factors like population density, vaccination rate and weather conditions. The code must be able to calculate the prediction using machine learning algorithms with 50% accuracy or higher. Make sure to provide your answer like you would explain this to a student. - A function that takes an array of numbers as input and returns all prime factors of those numbers in ascending order:

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