See very simple. Add 1 and subtract 1 with given number. Now check either of the number satisfies 3-divisibilty rule. 3 divisiblity checking rule-> sum of all digits shuld be divisible by 3
you taught us upto a level that we can say that 7099 can be a prime No. . . . But you didn't taught full thing. whi wali baat hai k billi ne sher ko sab sikha dia but darakht par charhna ni sikhaya, ta k agar sher usi ko khane aaye to wo apni jan bacha sakey.
Don't follow this rule Example : according to this rule,the number 713 is a prime number but this number is a composite number . The factor of 713 are 1,23,31,713 so this a composite number
I got a question to find prime number from four options a) 187 b) 221 c) 391 d) 307 I was ur trick and to my surprise, according to ur trick(n-1, n+1 div by 3): it tells all can be a prime number. TRICK FAILS??
*_Good Evening ma'am...._* Ma'am firstly thank you so much for this video... *_Do It Yourself...._* Q) 7099 Is a prime number or not...?? A) the rule is : * n+1 or n-1,the result is divisible by 3..if yes,then n can be a prime number.... So, 7099+1=7100 which is not divisible by 3 as he sum of the numbers is 8 and is not divisible by 3.. 7099-1=7098 which is divisible by 3 as the sum of the number is 24 and is divisible by 3.... Hence, 7099 can be a prime number.... *_Thank you Ma'am...._*
Meaning it can be divided with the number as in it is in the table of the number like 21 is divisible by 3 because it comes in its table as 3 x 7 = 21 Hope this helps
This has to be that worst method. Why just why..........! We have to check by usual square root but on top of that n+1 and n-1. In which universe is this fast 🤔
Kia dimagh kharab to nhin Hai ap ye bol rhe ho ke hamein square root Lena Hai agr square root Lena Tha to uske liye calculator BHI hona chahiye Tha na aqal mand calculator se to Aram se batadein jab Khud Ki nhin Pata to video Bana ke bachon ke concept kiun kharab krte ho Bacha video dekh kr Hai or phir paper ke. Waqt woh bole ismein mereko calculator nhin Mila to woh to Barbaad hogaya na
As u check n+1 or n-1,
Here seems n-1,n,n+1 consecutive so one must be divisible by 3
Thank you so much mam for wonderful content..
My pleasure 😊
This method really helpful mam. Thz for sharing this method.
I can't understand
😢😢i can also not understand
See very simple. Add 1 and subtract 1 with given number. Now check either of the number satisfies 3-divisibilty rule.
3 divisiblity checking rule-> sum of all digits shuld be divisible by 3
Excuse I wanted to know that how to know that till which number we have to take prime numbers for the prime factorization
Can u tell me a little fast I have a exam tomarrow
And how did 301 changed into 137
It's shown in the video till square root of the given number you have to take prime numbers
@@FastandEasyMaths thanks let me see
If a number is not divisible by 3 even after doing+1 and -1 , can we be sure that its not prime number or it can still be prime number ??
It can be a prime
Yes we can be sure because all prime numbers apart from 2 or 3 can be written in the form 6n+1 or 6n-1 and 6 is divisible by 3 and 2.
@FastandEasyMaths
Actually, apart from 2 and 3 all prime numbers can be written in the form 6n+1 or 6n-1
Take these integers,35,35+1=36,divisible by 3, but 35 is not a prime,rather than this 6m+1 or 6m-1 is a more substantial approach to the prime numbers
you taught us upto a level that we can say that 7099 can be a prime No. . . . But you didn't taught full thing. whi wali baat hai k billi ne sher ko sab sikha dia but darakht par charhna ni sikhaya, ta k agar sher usi ko khane aaye to wo apni jan bacha sakey.
Ma'am could you make videos on engineering mathematics and probability and statistics
Sure, will do so ASAP
@@FastandEasyMathsMa'am is 811 a prime number.And I wanted to ask few questions and share few more things regarding maths ,can I get your mail id .
What if both the number divisible by 3, There can we say that is a prime number ? Or still it CAN be a prime number.
No any number which is divisible by any other except itself or 1 is not a prime number
No two numbers that have a difference of 2 will BOTH be divisible by 3
7099 can be a prime number
yes
Mam can you please make a vedio for me please only composite numbers please 🙏🙏🙏🙏🙏🙏🙏
Don't follow this rule
Example : according to this rule,the number 713 is a prime number but this number is a composite number . The factor of 713 are 1,23,31,713 so this a composite number
how to find a square root of a number
Yes mam, 7099 can be a prime number.
Thankyou so Much for the trick mam, It was phenomenal 😄💟
My pleasure 😊
Thanks🙏
My pleasure
n + 1 & n-1 if divisible by 6 then it is possible for it to be a prime number, it's not 3 for gods sake
i made notes as you got the concept clear and the answer to DIY is = It can be a prime no.
Thankyou
319 is subtracted by 1 = 318 is divisible by 3.
thanks!
Thank you so much mam
My pleasure
Thanks Mam
Please Make Video On This Content ⬇️
7 multiply by 6 upon 8
Please!🥺🥺
42/8=21/4
Ma'am thank you for this content
My pleasure 😊
49 is odd and is still composite?
Yes, it is. Pls watch the video it's mentioned there properly😊
Is 1141 a prime number or not
I got a question to find prime number from four options a) 187 b) 221 c) 391 d) 307 I was ur trick and to my surprise, according to ur trick(n-1, n+1 div by 3): it tells all can be a prime number. TRICK FAILS??
No the truck also says all can be prime numbers, this trick actually helps you to discard numbers which surely are composite
8:00 357 is not prime 7x51=357
I know these tricks, but still watching your vedio.
Hahahaha you are so funny
Please tell then my exam is near😢
I can't even understand 😕
*_Good Evening ma'am...._*
Ma'am firstly thank you so much for this video...
*_Do It Yourself...._*
Q) 7099 Is a prime number or not...??
A) the rule is :
* n+1 or n-1,the result is divisible by 3..if yes,then n can be a prime number....
So, 7099+1=7100 which is not divisible by 3 as he sum of the numbers is 8 and is not divisible by 3..
7099-1=7098 which is divisible by 3 as the sum of the number is 24 and is divisible by 3....
Hence, 7099 can be a prime number....
*_Thank you Ma'am...._*
Perfect Surya 🥰
is 451 a prime number?? u check ur fomula is wrong
Not a prime number
451 is a 11 multiple
I also can't understand 😢
Divisible ka word mujhe thora hindi me smjhayega phr mere ye smjh ajaega?
Meaning it can be divided with the number as in it is in the table of the number like 21 is divisible by 3 because it comes in its table as 3 x 7 = 21
Hope this helps
I cannot even understand😢😢😭
12387 is divisible by 3 so it's not a prime number.
Tell me deeply madam
But for 49 it is not applicable.... As 48-1 divisible by 3.... But 49 is not prime
So, it's said that it can be a prime, not always it will b a prime pls watch the complete video to understand the trick properly
Please in Hindi mam please 🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺
1009 is prime number but ur nethod says it can be composite number
1009 can be prime because 1008 is divisible by 2 and 3
Yar galat English bol rahi ho shukria kam mari karo
7099 it can be a prime number
please change thumbnail
Namaste.... This dont work for the number 91....... 91 is a composite number. 13×7=91. But the method u explained says 91 is a prime number.....
No it doesn't pls see the video fully
@@FastandEasyMaths Sorry for half cooked comments.... I apologize.
Explained well
hey loser 91 lets apply 91+1 =92 %3 is not equal to zero...its not a primenumber
This has to be that worst method. Why just why..........!
We have to check by usual square root but on top of that n+1 and n-1. In which universe is this fast 🤔
What are you talking about ! This better be 5th grade math. I asked my sister in 7th grade and she does not know!
Tell me mother language
785 cannot be prime
264 cannot be prime
357 cannot be prime
1,091 can be prime
12,387 cannot be prime
8,567 can be prime
7099 can be prime
Her two seconds are very long
It can be 7099
Illogical, for instance 247
नही अध्यापिका जी , 7099 कोई prime number नही है, इसके factors 1,229,31 और 7099 हैं।
7099 it can be a prime
Your fav sub mat you explaining easy ly
Kia dimagh kharab to nhin Hai ap ye bol rhe ho ke hamein square root Lena Hai agr square root Lena Tha to uske liye calculator BHI hona chahiye Tha na aqal mand calculator se to Aram se batadein jab Khud Ki nhin Pata to video Bana ke bachon ke concept kiun kharab krte ho Bacha video dekh kr Hai or phir paper ke. Waqt woh bole ismein mereko calculator nhin Mila to woh to Barbaad hogaya na
U know Hind madam
No
Njan karanam 130 likes
😊😊😊😊
You deserve my like
മലയാളം പറയമോ ❤️
7099 can be prime no.
Hii
Wtf
Bekar trick
Thank you thank you soooo much sooo much jiii😩🤍😭
My pleasure 😊
108 can be a prime number
No it cannot be