Prime Factorisation in a Nutshell | GRE / GMAT Quant Explained

One of the most tested topics on the GRE and GMAT: Prime Factorisation. You just have to know the shortcuts and tricks involved.

How to count the number of factors.

Separating off the Zeros.

Testing Whether a Number is Prime.

Difference Between a Factor and a Prime Factor.

The GRE and GMAT are two of most used graduate exams for those seeking to study a Masters Degree or Masters in Business Administration (MBA) degree. The Graduate Record Exam and Graduate Management Admissions Test have been taken for over 50 years and are taken by approximately 600,000 and 300,000 people worldwide annually, respectively. These exams are typically taken between the ages of 18-40, by those who have completed, or are about to complete, their Bachelors Degree.

[jayagrace]

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[littlebird]

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[osaidqasim]

I did my GRE test yesterday, I needed 157 in the quant section for the university admission, and thanks to your help I got 160, thank you so much for your videos, you made my GRE journey easy and enjoyable

[soapmactavish]

Finding whether a number is prime or not by dividing ONLY with the prime numbers, like 2, 3, 5 or 7 was the great advice. THanks Philip!

[osamafaisal]

The last trick was absolutely insane...I've never come across such an incredible trick in all my academic life

[ThexLegendLP]

You are amazing. Thank you so much. Please never stop sharing those valuable lessons with people around you. The world needs teachers like you.

[dayancodes]

Philip's gesturing reminds me so much of one my favourite SWE tutors Max Schwarzmüller. Both excellent tutors in their own right.

[mariozavala]

I don't know where your accent is from, but I love it! It makes the lecture much more interesting a pleasant to hear

[anikajabin]

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[Kings_]

(5:17) I utilized this approach...

I multiplied 8 by 15 (8*15=120) and then check from the following numbers which is divisible of 120, that is (124/24)

Therefore, 24 was the right answer😄

[sathyakalyan]

your videos are helping me boost my GRE score which i could not do for a long time. thank you so much and please dont stop doing this, you are an excellent teacher.

[DHAiRYA]

In the first question (2:58), can we simply multiply 8 with 15 and see which of the following options divides the multiplied number (here 120)?

[vaibhavikavathekar]

Thanks a lot Philip, I was absolutely dreading about the quant section in GRE, but they say when a wonderful teacher comes by your way things start to seem fun and achievable. Thank you for all the tutorials and the good work you are doing! :)

[NatashaKait]

I wish I found your videos sooner. Its all my studying and mistakes are making SO much sense! Thank you!!!

[monikaramos]

Prime factorization has always been so intimidating to me! Thank you for these extremely useful tips. Now they are fun

[ChinonsoGrace]

You’re the best tutor I have ever seen. God bless you

[joysauruspappy]

I love the how you breakdown the problem into the most simplest. There are certain ways of explaining which gets registered in your brain and everytime I come across such a problem, I very well remember your explanation and I can never forget it. Thank you so much for doing such an excellent job!

[mithra]

This is the reason why I keep looking at your videos!! The last trick was under my nose but I've neve ever thought of doing it that way 🤦🏻🤦🏻🤦🏻 love the videos that you keep putting up!!!!

[adityajain]

So helpful. I watch all your videos day in and day out, thanks for your time and effort. 6 more weeks to my test and I was lucky enough to find this channel

[allysonaranonu]

You are so brilliant. Thank you so much for these videos. May God bless you. I feel at ease as I prepare for my exam now. I can’t thank you enough. All your videos are gems.