Greatest Common Factor Trick GCF

It is easy to find the greatest common factor using the eucliean method. This is the fastest method of working out greatst common factors short of knowing all the factors for every number!
This method works rapidly even for large numbers and utilises the Euclidean algorithm.
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[@mrswilliamstoyou3325]

Could have been spared a lot of heartache if my teacher would've just done it this way. I love your videos. So far they've helped me more than any other video out there. Quick, simple, to the point, no bs in the middle. Love it! Thank you!

[@samanthafederico8278]

Thank you so much for this video! I am a middle-aged woman and have not even thought of a lot of math I learned in school. Now that I will be becoming a classroom assistant, I need to brush up on things. I certainly wish we had tutorials like this when I was in school. Math might not have been so terrifying to me!

[@3nduser]

with this newfound knowledge i shall take over THE WORLD!!!!!(that is my math class)😁👍👍👍

[@youslaybestie1092]

😂

[@omarmelgoza2772]

Hahaha

[@priyen-88]

Did u do it ?

[@epicplayz947]

Did you do it

[@Anthony-nw6xs]

its been 7y how you been?

[@michellesupratman9978]

Wonderful method. It was just today that one of my students asked me if there is a short cut to finding the GCF. I showed them the Ladder method. I do believe this method has that one beat! Thanks so much!

[@johnmolina9940]

thank you so much this is the best tutorial in finding gcf i've ever found.

[@Kalparkr]

I was stressing out before I watched this. I knew there must be an easy way to understand this topic. Thank you so so much! Amazing!!!

[@billionbillions2833]

Thank you for sharing your knowledge. It is the most simple way for GCF!

[@sirpiddlefartiii]

Thank you so much. I'm trying to pass a beginner college algebra course and have no clue what I'm doing. This is so much faster than trying to check every single prime number individually

[@chantal0861]

love it - my kids are in 5th grade and have just started needing HCF (Highest Common Factor) I will be showing them this. thank you very much

[@jaintly]

I've always struggled with Math, like so many others. I'm trying to get better, and your video just taught me in such an easily understood way. Cheers!

[@PurdyBear1]

Thanks for the video, this is a much easier method to understand then the one in class. I get this one, the other was way too confusing.

[@subhannaeem6482]

OMG U BLEW MY MIND THIS WORKS 100% I WAS DOING MY HOMEWORK AND IM ........ OMG

[@Pellinore]

Thank You. This method solved a big issue i have been having.

[@lanatx7012]

You made that so simple. Thank you so much 😊 I need your vids in my life 😆

[@thegamingkid_yttgkteam7350]

Thank you for your knowledge!

[@rockyjaded1219]

Just found out about this because my little brother asked for help to do his homework, thanks my g!

[@adrianamatallana92]

Great videos! Thank you. I have a question: How do you find a GCF when you are comparing 3 diferent numbers?

[@izzyd3986]

@Eniola A. how?

[@AsianDuo97]

How do we do it with 3 or more numbers?

[@PrasitGebsaap]

Find two numbers first, then use the gcf with the third number.

[@jollyroger6660]

I'm in a programming class and I have to write a program for finding the gcf and reducing a fraction. You just saved me a couple hundred lines of convoluted code!

[@tecmath]

That is awesome! Hope the code goes well.

[@Big-E-TheBouncer]

Best method I've seen! Thank you

[@hizzle8393]

Thank you so much, needed this for surds

[@Gina22208]

Wow, you really saved me a headache of worry and anxiety over these large fractions. I’ve been looking for quick solutions on these forever. You’ve just made studying so much easier for me. This will change my life! Thank you, so so much for the tip!

[@oliverday7346]

Amazing method - makes simplifying ratios insanely easy

[@nobody3973]

lots of thank you for this tutorial!

[@liquiddreamification]

This will help me greatly thank you.

[@HassanLodh1]

Thanks bro your a legend I have a test tommorow

[@egg3288]

This helped me out a lot thanks 😌

[@harshakulkarni1432]

Thx for sharing this method, really useful

[@herxreflection]

I am truely so grateful for you. I hope all your dreams come true

[@avyuktpansari8636]

Thank you so much for ur help!!!

[@williamgraham5783]

This is so helpful!

[@lightninggaming5739]

This was incredibly helpful

[@aissa-xo]

even though its been 7 yrs this actually worked, tysm i did it to find the hcf for 1126 and 9720, i thought it was impossible without spending like 30 minutes but i did it in like 10 minutes with your method, tysm!

[@anithavalluri9666]

Thank You! It helped me a lot. I usuallybhave really trouble in solving the gcf. Even if i ask someone they tell me the long process way.😅

[@Arbiter902]

Super easy man thank you!

[@az0m1]

THANK YOU SO MUCH YOU JUST SAVED MY LIFE

[@epicplayz947]

Thank you so much I was learn how to find the gcf and I got confused of how to do it but when I came to watch your video it help me so much so thank you so much and hope your having a great day 5:25

[@bryancmc9250]

So helpful, thanks!

[@SubhomoyHaldar]

Oh oh!! The Euclidean algorithm!!! 😁😁😁 It's the second fastest algorithm if you're concerned with integers in computers.... the fastest is Binary GCD algorithm. But it's good enough for us. Well done!👍

[@justinabenson7229]

Subhomoy Haldar how do u do that?

[@shadowkryptic9655]

your videos help a lot!

[@redezekieloctavio2852]

Math teacher told she gonna give us a hard activity tommorow,thanks for this bro.

[@recon6660]

i am glad i watched this video. really deserved more views .

[@daragonfan8536]

thank you so much it will help me a lot

[@rodericktatom384]

Thank you for the info!

[@calebhughes303]

If you could show how to get the LCF and how to do a math problem with 3 GCF and 3 LCF thagmt would be so helpful! You're awesome, thank you for your help!.

[@JetzXFTBL]

There is no such thing as a LCF because everytime it will be 1, so do you mean the LCM?

[@4nico_]

Thankyou so much sir!❤❤

[@fumble1328]

THANK YOU SOOOOOO MUCHHHHH OH MY GOD YOU MADE MY LIFE SO MUCH EASIER

[@flygirl4eva165]

Love your accent and your videos!!

[@simonrohrer2790]

so simple, great video

[@ritz-freuddesrosiers7856]

Thank you very much 🙏

[@ricoverdejo443]

Thank you i learned from you

[@craftxgamez]

tysm helped me ALOT

[@soul-qf2zq]

my mind was blown haha thank you so much

[@jackm9410]

This is brilliant!!!

[@nadinzalexis2304]

Thank you very much!!! Nice!!

[@SchoolYourBrain]

you just blew my mind!

[@maksimoomoo8488]

Thanks alot even tho im 6 years late this really helped me

[@gerarddonovan4145]

Best explanation of Hcf

[@subhannaeem6482]

YOU EARNED YOURSELF A SUBSCRIBER

[@azizcomics-azizanimations]

THANK YOUUUUUU!!!!!! This helped me so much with finding greatest common factors!!!1!1!1!!!1!🎉🎉🎉🎉🎉🎉🎉

[@heartsandblood11]

What kind of sorcery is this?! Haha thank you soooo much ❤️

[@edlll3335]

Cheers mate

[@chiefofit3936]

I have a minor case of math dyslexia that has always prevented me from just seeing numbers in my head. This just helped me in such an immense way that I'm excited to do math again! Thank you for solving a 9 year struggle in 8 minutes!

[@ILOVECHICKEN698]

No You don’t just have to pay attention 😂

[@benjilarge2527]

@@ILOVECHICKEN698 bro he probs does have dyslexia, it does mean he can't concentrate that well.

[@lmillzorscrappathe1st180]

Thanks!☺ i understood it😇

[@myya8370]

Sooo helpful! 🙏🌞

[@chickennuggets8803]

Omg this is so cool Thanks for the tips 😂👍

[@VickyKumar-rl4uf]

Ur hot 😂😂

[@ELPaso1990TX]

Wow thanks for this! I had 816 and 672 and got GCF 48! (144, 96, 48)

[@nlnd6490]

This is very helpful

[@proloko1220]

Thank you so much

[@daluka5298]

this helped me a lot

[@angela.5998]

How are you getting these remainders? My calculator came up with different remainders for every example you've given. Even rounding the remainder didn't make it consistent to your...help?

[@istairsdownmyfell.8967]

This is a really late comment, but to get a remainder, the work has to be on paper. Only then will you get your answer. The calculator only comes out as a decimal, which is probably confusing you.

[@willrr988]

Bruh, you're the man! (Drop the mic)

[@mohannadr1343]

This is the best trick in middle school ever!

[@Laovon19]

Thank you!

[@quantum5441]

you have saved my life

[@Tsskyx]

There might be a catch when you try this and the number on the right happens to be larger than the one on the left. Here's a graphical representation of how to deal with such problem: Find the GCF of 702 and 507. 702 - 507 = 195 (subtract and shift the last two down) ↓ ↓ 507   -   195 = 312 (same thing again, but notice that the difference is bigger than the subtrahend) ↓  ˢʷᶦᵗᶜʰ  ↓ 312   -   195 = 117 (for this reason, simply switch them and subtract them as before)   ↓ ↓ 195   -   117 = 78   (now it's normal again, so subtract and shift down)    ↓ ↓ 117   -   78 = 39  (now you can probably tell that 39 goes into 78 two times, so 39 is the GCF) If you have problems reading this (I used a lot of special characters to format this), then tell me, I will give you the raw version.

[@Tsskyx]

***** Well, you need to calculate the modulo, so if the smaller number fits into the larger one no more than once, then you can subtract them. In other cases, you have to divide and find a remainder.

[@hellow1444]

Yes, but since 195 can be divided in to 507 more than once you have to divide. I don’t know why you subtracted

[@hellow1444]

@@Tsskyx just realized I’m replying to a 5 year old comment

[@nevillesouth5606]

Y do you stop putting out videos bro y I learned so much since I started watching your videos thanks a lot my brother

[@61subsandnovideos]

Khan academy killed him

[@ruthnetserab5414]

@@61subsandnovideos huh

[@matthews-d6431]

what happens if when you multiply the smaller number by even just 2, and it exceeds the larger, do you start multiplying by 1,5

[@futuretrunks9257]

What happens when the smaller number exceeds the bigger number amount? Like when it can’t go into the bigger number even once? For example 250 and 130. 130•2=260.

[@flitzyhimself]

OMG TYSM IT MAKES IT SO EASY NOW!!!!!!!!!!!!!❤❤

[@MrTechnoman31]

Hey mate have you ever considered making videos on more advanced stuff, integrals or quadratics? Would definitely watch those

[@pelyigpd7668]

Hi

[@flashlightdog2384]

This man is a genius

[@greaserboy4614]

Thank you

[@HafizurRahman-zr2uc]

Bro this is the great video

[@hfjkcduonc]

Thank youu!

[@vinnysworkshop]

Recently, I got an F for flunking a math test by Mrs. Irby about GCFs. This helped me a lot. If I can memorize it, I can go from an F to a B.

[@vinnysworkshop]

I take that back. I'll send you this word document. PPPLLLLLEEEEEEEEAAAAAAAASSSSSSSSSEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! explain why the GCF of 128 & 156 is 4, not 2.

[@jess-sohee]

youre literally a genius

[@killerkidzero507]

THX ALOT!

[@Grumblebottom]

How would you get the GCF of 3 or more numbers?

[@andrewdownard9833]

ZOMG THANK YOU!

[@BLKJ]

Does this work for 3 numbers?

[@safwanalkan7865]

here is the best method i found for 3 numbers so far i hope its good for u too mathchat.me/2015/03/26/how-to-find-the-gcf-of-3-numbers-fast-no-prime-factorizing/

[@Rowec]

Life. Changing.

[@PurdyBear1]

I had a problem with this one. The two numbers are 750 and 180, which give 4 r 16 carried over, then 180 and 12 with 11 r 25, but then it gives 16 divided by 25 giving 0.44. Help!

[@WeeDMonkeY69]

I got 750 180 4r30, 180 30 6NR, The answer is 30. Check your math.

[@marianeescobar3899]

This guy has a really nice voice

[@westlawyoleo.orgcell1887]

Everyone should up vote this so it would have turned up search results sooner. Hands down the fastest way. BUT it is also impoyto do it with prime numbers so you understand the many uses of primes.

[@Enrico_Luis_Castro]

Hiii!, can I ask if u can do an gcf example,just for our exam.

[@judi2009able]

awesome

[@isso3944]

one question how do you figure out the remainder cos for me it comes as recurrring

[@angelbuttaro1447]

How did you get a remainder of 60?

[@JesusPrice]

Oh my, that is the ish!!!!

[@neranjansugumar683]

This guy legend