Finding the least (lowest) common multiple (LCM) using the upside down birthday cake method

[igotjoy1]

Liked the vid. Clear explanation. Thanks!

[Nancyfootehigley]

@MECAmovies It does still work for the example you gave -- you just stopped too soon. with 4, 5, 12 and 16 you can still take our another 4 (just bring the 5 down). Then you have 4, 4, 5, 3 and 4. Multiply those together and you get 960.

[MECAmovies]

This is an interesting process, but it doesn't work for LCM all the time. Try the numbers 20, 48, and 64.

the LCM by the method in this video would be 4 x 5 x 12 x 16= 3,840

but the actual LCM is 960. So, unless I've missed something, this isn't accurate.

[karmaxx]

This is SOOOO helpful and I thank you for posting this (and the GCF one). You just made someone understand it! :)

[MegaMyrow]

Holla at 1:39 Big L in tha house this video is great it helped me out alot thank you

[hamse86]

great video you really helped me keep the good work up

[1killerfang]

Thank you so much.. this really helped me understand this method much more clearly!

[iLIVEinMURFIELD]

What about 90 and 108!

[rerere318]

ur amzing thank you ALOT!

[TunnelUnder]

Thanks! I was SO confused on this while doing my homework. Now I get it! Keep up the good work!

[Princesspaulalita023]

tnx!!!!!

[itshowtime88]

Thank you so much. This is the easiest method out there!! You are the best!!

[jahcandance]

Wow! I wish my teacher taught it this way. THANK YOU!

[mslisapags]

Hi I love this method but I was trying to do the LCM of 12,30,75 and my teacher got 300 with prime factorization and I get 3000 with your method. Can you explain what i did wrong

[Nancyfootehigley]

@mslisapags Try watching this video to clarify things. You didn't do anything wrong - -you just stopped too soon. Watch my new video:

Least (lowest) common multiply using the upside-down birthday cake method part 2

for clarification.

[tecken5]

Hi I a'm realy having trouble at GCFand Lcm but when i see your video you helped me a lot ! thank you so much i got a high score on my quiz and test thank you so much !

[ktaylor1951]

Fabulous !

[01JH]

What about something like 3, 8, 12?

[Nancyfootehigley]

@01JH Since 3 is prime, the only factor they have in common is 1.

[rish134]

helped alot thanks!!

[BB3AST]

thanks this video helped

[incur]

Thank you. This helped me out very much.

[rolandoayson]

you're great!!

[rolandoayson]

you're the best!

[rolandoayson]

you're simply the best!

[rolandoayson]

you're the best

of all the video in you tube in finding the least common multiple, this is the best.

more power you!!!!