This is really a somewhat confusing issue, on which there is no general agreement. Some say that numbers (and other math concepts) exist independently of any physical reality. Others say that numbers are concepts made up by humans. However, note that if SOMEONE ELSE (say, some aliens) "make up" the numbers, many of the things will be exactly the same (for example, 2, 3, 5, 7, 11, 13, 17... will always be prime numbers, though the aliens may call them by a different name).
Doesn't exist. D=500, I=1, L=50. It doesn't make scence!
No it does not.
A probability must needs be a number between 0 and 1 (often expressed as 0% and 100%), inclusive.
The sequence of numbers, 1, 1, 2, 3, 5, 8, 13, . . . , in which each successive number is equal to the sum of the two preceding numbers. Couldn't tell you where they exist in nature. Growth patterns of certain living things.
for what number of tereahedra exist kaleidocycle
That number doesn't exist.
1
It can be proven that such a number cannot exist.
Contrast hydrogen don't exist. Hydrogen oxidation numbers are +1 and -1.
There is a difference between the number in service and the number that are fully built but are undergoing flight testing. So as for the number in service (As of July 2011) there are 53 (Including the 1 Airbus test frame). The number that exist is larger than this.
a zillion exists. it has fifteen zeros. 1,000,000,000,000,000 edit: No it does not. The number suggested above is actually 1 Quadrillion.
Do you mean as in phone number? The tooth fairy doesn't really exist, so she won't have a phone number.
There is no such concept because it is not true. There are many mathematical proofs based on proving the non-existence of a thing. The following example should demonstrate. I want to prove that the biggest number does not exist. Let us suppose it does exist, and let us call it B (for biggest). But then consider B + 1. B + 1 is bigger than B (this can be proved as well). So B cannot be the biggest number. That is, there is no such number B. In other words, the biggest number does not exist.
No this is not a number. This word does not exist
The distributive property states that multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products together.
It does not exist
Of course. You just wrote it in your question ! It's the one unique number that's exactly 0.86912 percent the size of 1 billion.