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# What is the largest number possible using 2, 2, 2 & 2?

CEans,

What is the largest number possible using four 2's. Can we come up with a formula with two variables [viz. the number (x) & repetitions (y)]?

What do you think?

What is the largest number possible using four 2's. Can we come up with a formula with two variables [viz. the number (x) & repetitions (y)]?

What do you think?

**Addendum**: Factorial is not allowed 😉 !
I sometimes sit & wonder, if the questions we post here in CE's CE - Quiz | Puzzles | Mathematics section are way too tough for most of us?

Or shall we start posting simple, no-brainy puzzles? Not a single try for the current puzzle?

Or shall we start posting simple, no-brainy puzzles? Not a single try for the current puzzle?

I think the biggest no possible is

(((2^2)^2)^2)

(((2^2)^2)^2)

Hi,

I think the largest number possible using four 2's is

(2 ^(22 ^2)) = (approx.)4.9 *(10^145)

I guess the following formula should work for largest no possible using x(as no) and y(as no of repititions)

if (y>2)

x ^((y-2)times x)^x)

else

y times x

I think the largest number possible using four 2's is

(2 ^(22 ^2)) = (approx.)4.9 *(10^145)

I guess the following formula should work for largest no possible using x(as no) and y(as no of repititions)

if (y>2)

x ^((y-2)times x)^x)

else

y times x

Not really,

22[sup]2[/sup] < 2 [sup]22[/sup]

So we can still go further.

22[sup]2[/sup] < 2 [sup]22[/sup]

So we can still go further.

Yes Big,

You are true,but what happens when we have too long value in exponential ,we get sometimes infinitely large values.So to avoid this thing,I have not taken 2 22 into account.

You are true,but what happens when we have too long value in exponential ,we get sometimes infinitely large values.So to avoid this thing,I have not taken 2 22 into account.

Is there any number larger than 2^222 for four 2's?

prakash.athaniIs there any number larger than 2^222 for four 2's?

Hi Prakash,

2^(22^2) > 2^222 (if we assume values to infinity are allowed)

shalini_goel14Hi Prakash,

2^(22^2) > 2^222 (if we assume values to infinity are allowed)

Also

2^(2^22) > 2^(22^2) > 2^222 (if we assume values to infinity are allowed)

Are we at the biggest number yet?

Guys, the factorial operation is NOT allowed

anyway what is the biggest number?

Yeh, that's the question 😉 !Raviteja.ganyway what is the biggest number?

(2*2)/(2-2)... ha ha ha. Can someone find bigger then this...The_Big_KYeh, that's the question 😉 !

That is NOT defined, CB 😉crazyboy(2*2)/(2-2)... ha ha ha. Can someone find bigger then this...

But I didn't think about that 😉

Surrendered... 😁The_Big_KThat is NOT defined, CB 😉

But I didn't think about that 😉

may be 2^(2^22) is biggest...

-CB

Any Crazy Engineer answered this typical, mathematical twisted puzzle

**hello**

**I Do Think That There Is Not A Specific Number Made From 2,2,2,2 Cuz 2^2>22^2>2^22>2^222 And Goes On............**

Only four twos. 😀hassaanhello

I Do Think That There Is Not A Specific Number Made From 2,2,2,2 Cuz 2^2>22^2>2^22>2^222 And Goes On............

Looks like everyone has given up on this! 😔

The_Big_KLooks like everyone has given up on this! 😔

waiting for your take on this... 😁

So, what's the final answer we have?

22^22 is the answer i think.

Please read the thread; many answers have been discussed.shiwa43622^22 is the answer i think.

the answer which is in my mind is (2^(2^22)) or even it might be 22^22

Savitha - have a look at earlier posts in this thread. We've discussed quite a lot already :smile:savitha_chanduthe answer which is in my mind is (2^(2^22)) or even it might be 22^22

answer is (2^(2^22))

if u hve bigger than this just show.........it

if u hve bigger than this just show.........it

may be the answer for this answer is 2^(2^22)😒