Exponent Tower

Algebra Level 1

What is the value of 2 3 2 2^{3^2} ?


The answer is 512.

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20 solutions

Akshat Jain
Oct 21, 2013

This problem has the potential to confuse many. Just for those who got trapped, don't get confuse between 2 3 2 2^{3^{2}} and ( 2 3 ) 2 (2^{3})^{2} . The latter one opens to 2 3 × 2 2^{3 \times 2} , which has a completely different meaning.

What we want is 2 3 2 2^{3^{2}} , which is actually 2 2 to the power 3 3 to the power 2 2 . Hence we would simplify it as-

2 3 2 2^{3^{2}} = 2 9 = 2^{9} = 512 = \fbox{512} .

Hence the required value is 512 \fbox{512} .

how is 2^3^2 = 2^9

Hrishikesh Athalye - 7 years, 7 months ago

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Hi, Hrishikesh!

Firstly, just consider the power of 2 2 , that is 3 2 3^2 . Now we can simplify the power further, 3 2 = 9 3^2 = 9 . Now, since this is the power of 2 2 in the given question, we will simply put this as the power of 2 2 . So we get- 2 ( 3 2 ) = 2 9 = 512 2^{(3^2)} = 2^9 = \fbox{512} .

Did you get it, or is there any other doubt?

Akshat Jain - 7 years, 7 months ago

That's true Akshat it can confuse many . However great explanation !!!

Devesh Rai - 7 years, 6 months ago

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Thanks, Devesh! :)

Akshat Jain - 7 years, 6 months ago
Kishlaya Jaiswal
Oct 20, 2013

Don't think of 2 3 2 2^{3^2} as ( 2 3 ) 2 = 2 6 (2^3)^2 = 2^6

Instead it is 2 ( 3 2 ) 2^{(3^2)}

So, firstly evaluate 3 2 3^2 which is 9 9

Now finally evaluate 2 9 2^9 which comes to 512

o

Umair Ashraf - 7 years, 7 months ago
Andhika Rahardian
Oct 23, 2013

From The question , we simplify 2 3 2 2^{3^{2}} to 2 9 2^{9} = 512 \boxed{512}

easy ya ? forget the calculator now :D

Daniel Ferreira
Oct 22, 2013

2 3 2 = 2 9 = 512 2^{3^{2}} = \\ 2^9 = \\ \boxed{512}

Mmk Majid khan
May 1, 2015

Laws of exponents are applied here. first of all we will take the square of the exponent(3) of 2. the exponent of 2 will become 9 which is equal to 512

Enz Tan-Castro
Mar 25, 2014

2^n^m = 512 where: n=3 m=2

n^m = 3^2 = 9 2^9 = 512

Hatim Khatir
Oct 27, 2013

2^3^2=2^9=512

2^(3^2)=2^9=512

V Keerthi
Oct 26, 2013

first find 3 power 2 which is nothing but 9 then calculate 2 power 9 which leads to the answer

Jamonte Grant
Oct 25, 2013

2^3^2= 2^9

2^9= 512

Jamod Johnson
Oct 25, 2013

I put 2 to the third power then i squared it and it gave me 512

Ankit Rai
Oct 25, 2013

2^9=512..

3E2=9.then use 9 as the exponent of 2. 2E9=512

NyAsia Hunter
Oct 22, 2013

I pulled 2^3^2 in the calculator and got 512.

Muhammad Gaziani
Oct 22, 2013

2^(3^2)= 2^9= 512

By All Means
Oct 21, 2013

what you do is pretend that the the base two is not there and you square the the 3 by 2 then turns out to be 9 then you use the result as the exponent and do 2 to the ninth power

Sami Rajput
Oct 21, 2013

2 and power 3 & 2 first (3 3)=9 then power of 2 is 9 then multiply 2 nine time with 2 2 2 2 2 2 2 2 2*2= 512

Eduardo Teruo
Oct 21, 2013

(2)^(3^2)= 2 9 2^{9}

2 9 2^{9} = 2 x 2 x 2... x 2 = 512

Daniel Chiu
Oct 20, 2013

2 3 2 = 2 ( 3 2 ) = 2 9 = 512 2^{3^2}=2^{(3^2)}=2^9=\boxed{512}

Benjamin Kan
Oct 20, 2013

3 2 = 9 3^2=9 , and 2 9 = 512 2^9=\boxed{512} , which is our answer.

2^(3^2)=512

Jigs Lacaba - 7 years, 7 months ago

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