highest number u can form by using four 2's?

Answer 1

(2+2)/(2-2)

Answer 2

Highest number you can write using four 2's is - 2^2^22

Answer 3

2^(2^22)
That would be a number with 1262611 digits, about 600 pages just to write it down.
Of course, if you are allowed the factorial, that number factorial would be bigger still, and you can factorial that factorial number to infinity.

Unless you meant using four 2 but allowed other numbers as well, then there is also no limit.


If you are only allowed the basic 4 operations (+, -, * and /) but allowed a bit of creativity, then
2+2+2+2 = 8 and if you turn it sideways, it becomes the symbol for infinity.

That should be about it, I guess.

Answer 4

A(A(A(2,2),2),2) would be an incredibly large number. With current computer speeds, it would not be possible to compute this number. In fact, it cannot be expressed in this universe as a decimal expansion. Note, A(x,y) is the Ackermann function.

Now, imagine that "~" stands for Knuth's up-arrow operators.

2~2~2~2 would be quite large, albeit smaller than the aforementioned Ackermann's function.

Or, you could chain them together, like 2~~~~. . .~~~~~2~~~~~. . ., etc.

Answer 5

As u have given only four twos, but u have not given (u have said that using these +,-,* etc,.) Up to the point

A) 2222

Using Mathematics calculations:
A) 2^222

Answer 6

Clealy no mathematical operators being given any of them can be used
=>greatest number that can be formed is
22^22=341427877364219557396646723584
Some pretty big number haan!

Answer 7

Depends on what operations you are allowed to use?
2*2*2*2 = 16
2^2^2^2 = 256
If you can combine them, then 2^222 = 6.73998666678659948*10^66

-iggry-

Alex gave me an idea... 2^(2^22) = broke my calculator, but is it 2^4194304

Answer 8

Ha, such puny numbers. I'll show you all - go busy beaver function:

S(2222)

Beat that.
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And I mean without using some trivial variation of the above, like S(2^2^22). That's just lame.

Answer 9

I thought this 2^(222) = 6.7E66, but, but,

2^(22^2) blew the calculator off.

and so did 2^(2^22).

Answer 10

Tried all permutations I could and found the highest to be

2^222 = 6.74 * 10^66.