how much is infinity?

Answer 1

Infinity is not so much a number as it is a concept. Infinity is the state of being bigger than the largest real number imaginable. So really, infinity cannot exist as an actual number, because to do so would be to make it finite.

Answer 2

Infinity is, in fact, NOT a number. One cannot say how big infinity is. We define infinity to be something really large. Say, in the expression
lim x -> infinity, we do not know the exact number x tends to, we just know that x tends to something very very big, or we can say that x increases without bound (i.e, it has no bound).

Answer 3

The concept of infinity has tantalized and sometimes troubled mankind even longer. Zeno of Elea (495 BC?-425 BC?), an early Greek thinker, is remembered for his paradoxes of motion that are rooted in deep questions about the nature of time and space and in some misconceptions about infinity. Most religions attempt to explain in their own ways the mysteries and vagaries of the infinite.
In the early 1600's Galileo began to show signs of a modern attitude toward the infinite, when he proposed that "infinity should obey a different arithmetic than finite numbers." But it was not until the late 19th century that Georg Cantor (1845-1918), a German mathematician, finally put infinity on a firm logical foundation and described a way to do arithmetic with infinite quantities useful to mathematics. His basic definition was simple: a collection is infinite, if some of its parts are as big as the whole.
There is no biggest natural number. There are natural numbers so big that you wouldn't be able to live long enough to write them down, but they still exist in the mathematical sense, and they have all the properties of other natural numbers, including being able to be multiplied by other numbers and to be added to.

Answer 4

infinity is where there is no end or beginning. The sign for infinity is a sideways 8, which if you look at it has no beginning and no end.

Answer 5

Think of a big number, times that number by 1 million,
times that number by a gogol (1 with 100 zeros after it),
times that number by a gogolplex (gogol squared),
times that number by a gogolplexian (gogolplex squared),
the number you have isn't even a tangable fraction of infinity.
∞

Answer 6

It's not a number, it's a concept.

Besides, which infinity are you talking about; there are an infinite number of them...

Answer 7

Infinity is by definition greater than any previously assigned value.

Answer 8

Volitair said "To know the definition of infinity look at human stupidity"

Answer 9

How much is Infinity is like asking, how much is Priceless - there is no answer that cannot be enlarged.

Answer 10

You don't experience it in common experience, but in Mathematics the concept is very useful, just as the root of -1, which enables loads of important equations to be solved, even though it bothers one's brains to visualize it.