Fastest and Easiest way to find LCM

This video gives you the Fastest and Easiest way to find LCM of any given numbers!

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[philoconceptionist]

I am WILLING to be on my knees for you oh my lord. Thank you so much for the shortcut! At first I thought it’d be the normal tree or table method but it was a trick we could do mentally and quick once we’ve developed a habit. Subscribed to your channel ❤

[FastandEasyMaths]

Hi, I am putting a question here related to this topic. You guys can use the trick given in the video to solve this and put your answers in the comment section! I will let you know if your answers are correct or not!

The question is:


Find LCM of 24, 36 and 12

[KaushikMohanty-le]

Greetings!! I would appreciate it if you could explain me how to calculate the LCM of 24, 36, 44 and 62 using your technique.

[tcscrabblejacob]

This was so helpful! I watched like 5 videos about this and this is the only one I could understand. You are very good at teaching math! I cannot express my gratitude enough to thank you! ❤

[RinnaJoseph]

Thank you it was very useful to me And also you are having a good english skill too ❤

[Mastermind]

Best technique I ever practiced....
Thank you mam

[swaradegaonkar]

Thanks 🙏 my exam will start in 2 hours 🎉 this helped me right away 😮 crazy trickk !!!

Tysm🎉

You got a subscriber 🎉

[ronalbaite]

Thanks madam.. Best teacher I have ever met on social media.🥰

[AstonishingRolex]

Hey, thank you for the video. Could you help me in solving these questions?
1. Find the LCM for 3, 18, 21
2. Find the LCM for 9, 13, 26
I can't get it by doing your shortcut method. If possible do a video on this. It would be extremely helpful for me.

[dromerdev]

TLDW: LCM: Take the highest number, check is it a multiple of the other number/s. If it is, the LCM is the highest number.
Non multiple method: Find the highest number, check is it a multiple of the other number/s, if not, multiply the highest number by 2, then check is multipled number a multiple of the other number/s. If it is, the LCM is the multiplied number. If still doesn’t work: cancel out the multiplication, and multiply the highest number by 3 then check is it a multiple of the other number/s, then the LCM is the multiplied number (x3 num). If all my methods don’t work (prime num problem) and the highest number can’t be a multiple of a number/s, you need to multiply the highest number by the prime number. Then the LCM is that multiplied number.

thanks for the amazing video

[arijoseph]

Thank you for helping me i have js entered high school and hv a test to do u helped me alot❤, can u do a video of multiplying fractions please?
I am very weak in that area and in division

[Santu.]

1)What if, the largest number is not divided by other two numbers in series...?
2)What if, the set contain two prime numbers?

[IceddBruhhh]

Thank you, as a G5 student,
this is our topic, and an upcoming exam, i have a hard time understanding this Lcm and Gcf, this really gonna help me, thank you so much.... i hope you can help more people having a hard time... 😁😄😀

[gokulkrishnan]

You have a beautiful voice ❤ and thank you for this information

[adhiparun]

This method has saved a lot of time
Thank you so much ❤

[manythespeedrunner]

i remember using a slightly differenct variant of this method. i discovered it myself:
lets say i have a set of numbers, and i have to find the lcm of them
set of numbers: 1, 3, 12, 15.
The method i use is slightly faster here.
1. Here, i notice that there is a trio of numbers that are multiples of three (3, 12, and 15)
2. i take the largest number (15) and divide it by the smallest number (3) to get 5.
3. i look at the remaining set of numbers to check for any pairs (there aren't any in this case, so i proceed onto the next step. If there were, i'd do the second step).
4. In this case, there are no more "pairs", so I proceed. There is only another number in the list which is 1, but that doesn't matter since every number has 1 as a factor. I multiply my result of 5 (15/3 done earlier) by the remaining number (12) to get my LCM: 60.

Now let's apply that to the lists done in this video:
list: 4, 8, 16
1. I notice that there's another trio here, consisting of multiples of 4
2. I take the highest number of the trio (16) and divide it by the lowest number in the trio (4) to get 4.
3. We then divide the remaining number in the trio (8) by the result (4) to get 2.
4. 2*8 is 16, which is the LCM. in this video, the strategy you used is faster than mine, as the example used is a simple one.

Onto the next one:
list: 3, 4, 6, 18
1. We take all numbers that are divisable by 3 and put them in a trio. In this case, we take the largest one, as it has all the divisors of the other numbers in the list (18). We now have 18 and 4
2. we notice that both are divisable by 2, so we divide 1 of them by 2. 18/2=9
3. 9*4 =36, which is our LCM

the third example in the video:
list: 5, 10, 15, 20
1. we notice in the list that the 20 has both 5 and 10 as factors, so we are left with 15 and 20.
2. we notice that both are divisable by 5 (15/5=3; 20/5=4), so we divide 5 by preferrably the largest one (20) by 5. 20/5=4
3. do 4*15, which gives you the lcm of 60.
its a hard strategy to understand, but once you get the hang of it, you can go real fast,

[kritikam]

Hello ma'am, can you please make a video on rational and irrational numbers please? I loved all your other videos. Thank you for your efforts ❤️🙏

[navyasharma]

Who are seeing this video in 2024 please like 👇

[viveknanda]

Mam I don't know how to do LCM even though I am learning with table method when I was saw your video and I learnt with your trick perfectly and I can solve mains and advanced questions with this trick easily

Thanks for your efforts mam 😌

And mam I wouldn't have seen like this expert to learning the child basics easily to all the children

[GoldenNoodle]

THANK YOU VERY MUCH I LOVE YOU TRICKS AND ANY OTHER STUFF !!! CAN YOU DO THE SAME IN GCF?
AND CAN YOU DO IT IN THOUSAND NUMBERS?