answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: What is the GRE trick using factorials?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Is there a trick to figuring out factorials?

Not realy besides x! = x*(x-1)!. For some things there are approximations but these are only good for small ranges of values and complicated, generaly reserved for factorials of large numbers.


Do decimal numbers have factorials?

by using the Gamma method apparently...:)


What is the largest number that can be formed using the digits 976542?

Without using exponents or factorials, that's it.


What is the largest number you can make using each of the digits 7 1 0 2 and 9 just once?

I guess the expected answer is 97210. Using factorials and exponents very much greater number can be obtained. For example, 97210 is a number with 6880 digits. And that is without using factorials.


How do you find factorials?

to find factorials you just multiply the factorial like this. for example 6! you would do 6x5x4x3x2. a little trick of mine is to multiply the previous factorial's answer by the factorial you are trying to make's number like this 6!=5! 5!=5x4x3x2 i hope this was helpful' Dayna,a 10 year old girl


When would one use factorials?

Factorials are a mathematics application used for combinations and permutations. The real world application of factorials are used to find the probability of certain things.


What is 42 as a quotient of two factorials?

For any pair of factorials, a! / a-1! = a. In this instance: 42! / 41! = 42


Do you have to shout factorials?

YES!


Where can one get help with the subject of factorials in mathematics?

There are mathematics forums online where one can ask questions on factorials or one can read information on factorials. Examples of forums are the "Math Forum" and "Math is Fun" forum.


What is the best way to learn more about Gre words?

Gre words may be learned by using flash cards. Another way to learn more about Gre words is to take some practise tests to prepare yourself. There are also websites available to tutor a student preparing for the test.


How do you make 19 using four 4s without factorials?

4squared plus 4 minus 4/4= 19


Using four fours how can you get 19?

The way that I solved it involves factorials (!) which is usually allowed. Factorials are definited as the product of that number and all of the numbers less than it, down to 1. So, 4!=4*3*2*1=24. In this case, 19=4!-4-(4÷4) Ta da!