Trick 168 - Shortcut to find the Number of Divisors

Here is an interesting method to find the number of divisors of any composite number.....too good for students of junior classes and definitely for all competitions involving numerical aptitude test......for more such videos, keep visiting:

[samit]

Very helpful. Appreciate your effort..

[onkarchand]

Thanks ! For your video sir. I first time watch this and understand this in few seconds.Impressive😃😃😃😃👍👍👍👍👍

[Rushikanth_OO]

Thank you sir, it is very helpful to me

[kumarragendra]

Sir, i m enjoying your every video, thnx a lot

[aakashkarajgikar]

How about finding all the factors of the trick number is taking place? At 168?

[moiqtheplayer]

Thanks for sharing this, Sir, however, I just found out that there is an error for 8 which is 2^3 if I use x=a^m * b^n

That's correct if we use 8=2^3 * 2^0, then the number of divisors is right, (3+1) (0+1) which is 4, however if we use m=2 and n=1, for a=b which is 2, the number of divisors is 6, which is wrong because we want 4 which is the right answer

So, I guess that we have to use the a^m first until the number mod a is not zero anymore (that is, a result with the number behind a comma instead of zero), then b^n until the number mod b is not zero anymore, and so on

[venumacha]

Thank you sir, & how to find out if a & b are non primes ??

[mansisingh]

Very nice sir... From where you get these tricks ?please tell us your secret.

[achalshahi]

Please make a video on arthematic progression for competitive exam as I am having problem to solve them especially their word problems

[wastefellow]

1420has how many divisors.
Please explain

[Art_by_kasyap]

The total number of positive divisors of 7777 is

[fxnoob]

The sequence of triangle numbers is generated by adding the natural numbers. So the 7th triangle number would be 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28. The first ten terms would be:
1, 3, 6, 10, 15, 21, 28, 36, 45, 55, ...

What is the value of the first triangle number to have over five hundred divisors?