Question

if you have four 1's.what is the largest number you can make.(you can use any operator...+,-* etc)

Answer 1

i think it should just be 4

Answer 2

it is 4

Answer 3

sorry..its not...try again

Answer 4

either 1+1+1+1 or (1+1)(1+1)

Answer 5

no..

Answer 6

hint:any mathematical sign you can use

Answer 7

Then there is no biggest one, you can always take the factorial: (1+1+1+1)!!!!!!!!!!.. and so on

Answer 8

no

Answer 9

try again

Answer 10

yes,nowhereman,u are corrrect

Answer 11

answer is---
11^11

Answer 12

So if decimal system is allowed, why is factorial not? That's really arbitrary. If you want to make this a fair question you have to list which operations are allowed.

Answer 13

i have just used the power..
11 to the power 11

Answer 14

use factorial
but it will be a smaller no.

Answer 15

No it won't:
\[(1+1+1+1) = 4, \quad 4! = 24\]\[(1+1+1+1)!! = 24! = 620448401733239439360000 > 285311670611 = 11^{11}\]

Answer 16

11*11=121

Answer 17

no fairy..
its 11 to the power 11