Q:

# What is the last number on Earth?

A:

There is no such thing as a last number when it comes to the natural number system. By definition, every number has a number larger than it.

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In the base-10 number system, every number has a number larger than itself. The concept of infinity relates to the idea that there is no last or largest number; there is always a bigger number than another number chosen. For example, if someone chooses any abstract number N, and then adds 1 to it, the resulting sum is larger than N. For any number N chosen, N is not the last number that is possible.

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## Related Questions

• A:

The number one is neither prime nor composite. Prime numbers are positive integers greater than one that are evenly divisible only by themselves and one. Composite numbers are positive integers that have divisors other than themselves and one.

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In math, zero is considered to be an even number. In order to be even, a number must be able to be divided exactly by two. Zero qualifies because zero divided by two equals zero.

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The number 37 is a prime number. The definition of a prime number is any positive number that can only be divided by the number one or itself. A prime number must also be a whole number larger than the value of one.