PRIME or COMPOSITE ? Check in 10 Seconds

[@syedmdabid7191]

Close perfect square rule:- it's useful upto 4 digit. For bigger no. We confuse and more time. 2- 6n+1, 6n--1 rule has been proven to be false.

[@tirelesssoul6685]

Agarawal peoples are legend that's why im using Dr. R.S Agarwal's Elementry Book for competitive exams, it's perfect helping me alot.

[@kashika777]

Agreed 😀

[@ananyasingh5809]

Improving your English will help you in becoming a civil servant.

[@incognito3864]

People not peoples

[@swyj775]

@@ananyasingh5809 lol you are really gonna call out somebody because of their English? Pathetic behaviour 💀 remember English is just a language :)

[@climate9331]

Mate .. rs Agarwal books are not good for competitive exam preparation. It's good for academics , you can prefer Pearson,hc,verma,rd Sharma .for exams like NTSE / KVPY

[@SuperHuman748]

Another Solution :: Take a number say p square it p*p subtract 1 from p*p now divide by 24 if it divided its prime. That's it. Formula is p is prime if [(p*p)-1] ➗ 24=0 then p is a prime number. Only Exception cases where p is 2 & 3.

[@frintasudheeran5131]

For example??

[@biranchinarayanmohapatra4491]

@Sawan Challani , 319 is in the form '6n+-1' i.e. 319=6*53+1, it means it may be a prime number ⁉️ 319

[@himadrithaker4857]

Thanks sir, it helps my 9 years old daughter to clear her concepts.

[@ppscpreparationwithhammad]

Best video i have seen so far for prime numbers

[@cqqp]

Amazing!

[@meerabfatima6561]

@@cqqp No wayy Big Fan

[@nassrrwe1065]

Hi .. lam 60 years old now I wich the know you 40 years befor Thanks alot

[@dipakshah3842]

Sir can you make a video for more larger number becz it is in our 10th ncert syllabus sir if you do it it will be very kind of yours

[@hitarthsoni6042]

Thanks! Sir.

[@mamtagoyal4994]

Sharab bahut behtarin Ho Mujhe aapane acche se Sikha Diya Prime kya hai composite kya hai thank you you sir thank you so much☺☺

[@chintugamer418]

It is Last night , before exam i was seeing this video right now. Sir you had explained very well thanks sir

[@abhinabamritkar8432]

Sir pls tell me how it will work in 57 as 8²>57 and 2,3,5,7 can't divide 57 but 19 can so here the shortcut isn't working or something in process is wrong ?

[@march_mellow3]

Actually 57 is divisible by 3......

[@mdmaajid4316]

@@march_mellow3 lol big mistake 😂

[@abhinabamritkar8432]

@@march_mellow3 😑thanks

[@sidrasaeed7142]

This approach is not applicable to certain numbers like 143, 121.

[@suryanshmunglauna543]

Explain prime no

[@anuminhas9717]

You are great sir You make learning fun instead of boring . I found maths hard but you made it easy 👍👍👍👍👍

[@sureshaggarwal]

Thanks. Do share the links with your WhatsApp groups and contacts

[@anuminhas9717]

I surely will sir, this will help them a lot

[@jyotishridhar4095]

Amazing method to check a number whether its prime or composite👍

[@astroporpoise7802]

You're a fantastic teacher: knowledgable, clear, thorough, and kind. Thank you so much for your help! Subbed :)

[@SanjayPatil-zh7lc]

Thanks sir you are great sir

[@prakashchandradash8393]

I saw this method and now i am in a curious way to like this hard sums thanks Mr Agarwal

[@ajaykumarchoudhary1073]

sir you are excellent this is my second time i am watching your video i just understood that you are an exllent teacher

[@TheDHemant]

Sir why not the largest perfect square less than equal

[@azad5932]

Thanks for making this video. My daughter's homework became easier. But this method is effective as long as step 2 is a small number. When i tried tjis method on 677, i had to find a number square above 677. Kids in grade 6 need a calculator for this, which is prohibited. Lets hope my daughter doesnt get a large number like 677 on a test.

[@khushbooaggarwal5644]

Thankyou so much sir. With your help and guidance, I am able to solve these type of questions.

[@mrscientist6949]

Wow 🤩 easiest method

[@rakitarakit4079]

Sit thank u very much sir🙏

[@Smiley_028]

What a easy trick sir very helpful 😊😊

[@payalmanjrekar9717]

Thank you for this useful trick 👍

[@habiburmondal1321]

Fantastic method sir

[@aleenahasanbd]

Thank you sir

[@shikhaswati9506]

sir I'm in 6th grade and ncert chapter 3 is a headache to check this method helps a lot

[@para5033]

This method is useful for any no I mean 4 digit 5 digit etc Please reply 🙏❤

[@shobasujana6537]

Incredible sir🙏🙏🙏🙏

[@diwakarrajak2515]

This is best vedio for understanding the prime numbers

[@adriancollier4681]

Thank you. Needed this trick before my discrete math midterm. You're a lifesaver

[@anuradhachaturvedi2469]

Same

[@AmitavJha]

Over Powered

[@Dinbhar80K]

Sir ye rule 25 ke liye check kiye to 5 ka square hai to 2,3 se check karna tha to in dono se 25 nhi divide hua but 25 to prime number nhi hai

[@shivapooja9059]

Thankyou so much sir

[@anuradhachaturvedi2469]

I gave a subscribe because of this video

[@jahanzaibalibutt9865]

thanks sir, it is going to help me in my next math quiz

[@nehamakkar885]

This method is fabulous , i saw so many videos but mujh end me aa hi nhi rha tha .thank you sir

[@miniflipper4836]

what an amazing method, I never heard of it

[@sahrishgulzar258]

best video so far, thankyou

[@sangeetabehera6536]

Thnk u sir....for explng the concept in supr way

[@syedmdabid7191]

It's smaller number. Say for larger number more than 5 digits.

[@ankitgautam8549]

Ya toh aise sawal mere galat hote the ya inhe chhodna padta tha..... Thank u 🙏🙏

[@sauravsagar01]

well done sir....excellent job

[@harishchandramahanta1075]

Sir Teach Us in Hindi Many Students Dont understand English sharply But Not Me Many students

[@learngitaforkrishna7098]

Nice video for my final exam tomorrow

[@pankajbalwant437]

Than u so much 💚

[@Punjabei]

How about a bigger no like of 6 digits.... We cannot find out a sqrt so easily for that and mention all the prime numbers before it..

[@mangasenju1320]

This is so easy now thank you so much

[@a-37-alenvarghese70]

Thank you sir Really helpfull

[@crusader8331]

How if you find larger number like 11,00021 ?

[@babulbehera6765]

Thank u sir.....🙏

[@omarmagdy6196]

I dont understand How he check if numbers is divisble by 7 or 11? Please someone teach me

[@Nao20244]

Thank you sir. You are the best

[@NrityaNirvana1]

Nice video

[@viveksinghchouhan948]

Ek number sir !

[@AnkurSRKaushik]

Thank you so much 👍

[@pradnyabhatkar765]

Thankyou sir

[@swetha1814]

Aapki video bahut achi Hai ase hi daliye

[@abdulmatin3545]

Thanks sir

[@Jahanvi655]

Great method sir...really it helped a lot

[@twinkleb9961]

Sir really big thing.its very useful

[@neeschal779]

A lots thanks sir for helping me with trick👍️💓

[@AjayKumar-jy5gu]

👑 thank you king

[@md.alauddin627]

I have not seen any teacher useing simple ways to explain

[@knowledgecomesfromhere6332]

Awesome sir

[@everythingbrain4960]

U are not mentioned that p square is greater than or equal to n

[@Rabindramistry]

Thank you for tech this technic

[@RajSingh-id9gr]

Thank you sir 🙏🙏👍👍

[@rashmiagarwala2765]

Your method helped me, thank you

[@betawithbrett7068]

Wow!! This algorithm looks like the easiest to implement in Assembly language.

[@malikmuhammed7793]

In case of 2? Though it is obvious that 2 is a prime number?

[@malikmuhammed7793]

For single digit like 2, 3,5, 7,

[@prikshit545]

Superb 🎉😊

[@sheazalshaid9231]

Tthank u sir

[@tophanabehera5315]

Thanks for clarifying as a new comer...🙏🙏🙏🙏🙏

[@npregmi6952]

a good teacher

[@superdragonballheroesworld3014]

sir u are fantastic

[@jyotsanaraisinghani5012]

किती छान!

[@kabirshaikh2656]

As I took a no. 77 to test in your method as it is a prime or not Following this way above 77 Square no 9(9)=81 (it is a no. Above 77 ,,,as considering under the no. 9 values (2,3,5,7) I found that 7 is a divisible of 77 ...so like the way you told that (Is it could be proved that 77 is a Prime no.) Please reply as soon as I need your pleasure of thought weather my substitution is right or wrong?

[@sushiladevi9799]

77 is divisible by 7 ,so it's not prime.

[@jyotsanaraisinghani5012]

No it is clearly not Prime. 7 is a prime number below 9 and divide 77 to produce a quotient of 11 and remainder is 0 .Sir's method is absolutely correct

[@abhaychowdhary746]

Thank you so much sir

[@ksenvirolabs1257]

Very useful class sir

[@sonam8347]

For your method we need to know all square roots too🤨

[@aakashkjha10]

Thank you sir I was so confused as I'm so weak in mathematics, I couldn't understand how they're getting 22²( a square no.) now I am able to solve all of them🥺🙏🏼

[@user-lm2ul2ml6y]

Nic teaching sir 👌

[@gutlestarmimmy3420]

Very nice explanation sir

[@gotoshawty]

sir saviour ho aap 🙏

[@prashanthmadishetti9591]

Thank You Sir 👍

[@pulkitjain9679]

Thank you sir .it helped alot.

[@fitnessfreak2977]

But by using this trick "2017" should be composite no. Because the square root of 45 Is 2025 .. But 2017 is prime number ..

[@nakshthegreat7255]

Sir in the 83 one you have not given the prime number also 9

[@farjanamammi8495]

THANK YOU SOOOOOOOOOOOOO MUCH SIR

[@uniquely_angel7527]

Thanks.🙂

[@nakshthegreat7255]

Sir if the square is coming same as the the number given then what to do

[@saimasohail1879]

Very helpful

[@KumarKumar-gt9px]

Amazing class👏👏👏👏

[@lalitkishor2830]

Check whether 26 is composite or not

[@uroojrazzak4461]

Its not..as 2, 13 and 26 it self is it's factors

[@gopianandhi2017]

26 is not prime number

[@vijaykumaranuroop]

Tq sir u r God nice excellent sir