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Numbers

Numbers are our way to quantify, label, and organize the world around us in a logical manner. However, the systems used to obtain this goal differ geographically, historically, and by relative utility. All questions pertaining to numbers, including historic labeling systems, bases of numerical systems, constants, and the various ways they're grouped together, should be placed into this category.

46,867 Questions

When doing prime factorization if there is a prime number does it come out even?

I'm not sure what you mean by that. Prime numbers don't have prime factorizations because they are already prime.

Is this number prime or composite 21?

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 21 is composite.

Are uneven square roots rational or irrational why?

They are rational because the characteristic of evenness and unevenness is relevant only in the context of integers. And all integers are rational.

Is five thirds a whole number?

No it is not

It makes up one and two thirds, a fraction.

What is a rational number but not a negative number?

The term rational number is derived from ratio; it means any number which can be expressed as the ratio of two integers, such as 1/2, 546/17, etc. Any such number that is greater than zero qualifies as a positive number, which is therefore not negative.

How do you express a whole number as a product of its primes?

This is called a prime factorization.

1. Start with the smallest prime that evenly divides into the number and divide.

2. Take the answer and divide by the smallest prime that evenly divides into the number .... repeat, until no longer divisible by any prime but itself.

ex: 12 .....

12 divide by 2 = 6

6 divide by 2 = 3 (3 is a prime)

ans... 2x2x3

Which one of the following gives the number line between the number 1 and 8?

Since nothing is "following", the answer is none of them.

Since nothing is "following", the answer is none of them.

Since nothing is "following", the answer is none of them.

Since nothing is "following", the answer is none of them.

Which number is the mean of 16 is it 9 or 13?

A group of two or more numbers has a 'mean'. A single number doesn't.

If you absolutely must have the mean of a single number, it's that number itself.

The 'mean' of 16 is 16 . How you could ever get 9 or 13 will forever remain a mystery.

What is 12000 000 000 billion in kilometers?

The answer will epend on the units used for the given measure. Is it in kilometres, micrometres, nanometres or light years? Since you have not bothered to provide that crucial bit of information, I cannot provide a more useful answer.



The answer will epend on the units used for the given measure. Is it in kilometres, micrometres, nanometres or light years? Since you have not bothered to provide that crucial bit of information, I cannot provide a more useful answer.



The answer will epend on the units used for the given measure. Is it in kilometres, micrometres, nanometres or light years? Since you have not bothered to provide that crucial bit of information, I cannot provide a more useful answer.



The answer will epend on the units used for the given measure. Is it in kilometres, micrometres, nanometres or light years? Since you have not bothered to provide that crucial bit of information, I cannot provide a more useful answer.

What is first odd or Evan?

"First" is the ordinal for one, which is an odd number.