Find the LCM using Prime Factorization (1: Intro for beginners)

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Easy intro to a cool method to quickly find the LCM of any number.
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CC: by ME!
Works for ANY numbers... and it is FAST!!! The bigger the numbers whose LCM you are trying to find, the more valuable this method. It will save you so much time.
First I use the multiple listing method to get the LCM of 12 and 32.
Then I use the same numbers with the prime factorization approach.
Next example: 28 and 35.
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