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Prime Factorization to Find the LCM

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Uploaded by on Sep 27, 2009

Break down the numbers into factors of all primes, then take the highest power of each different prime number from both your prime factorizations. Multiply them together, and you've now got the LCM/LCD for your original numbers!

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  • finally my dumbass math teacher cant teach that stuff right so thanks

  • Wasn't listening in class.lol

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All Comments (31)

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  • your gay... i ate you.. but nice smile.. haha .....lol

  • I can't get how 18 and 21 get 63

  • my meth (math) teacher doesn't explain a thing! YOU DID THX!

  • omg that lcm is wile hard to do mann ;pp

  • U're a life saver! Thanks!!!

  • I didn't get it when my math teacher explained it -.- make more videos!!

  • DUDE THANK YOU!!!

  • Why did you stop makeing videos

  • I like this, i dont listen in class, so if i dont listen to you, i just rewind you.

  • You explained it better than my math teacher xD

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