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Q: What kind number is 9?

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either prime, pentagonal, square or triangle. work it out for yourself.

They are all multiples of 3

9 is a number

45 = 9 + 9 + 9 + 9 + 9 = 9 x 5

Every number is divisible by 9 but the answer wont necessarily be a whole number.

Related questions

A negative integer.

An even number whose digits add up to 9 or a multiple of 9.

1

any multpile of 18

It is a negative mixed fraction or improper fraction, a rational number, a real number.

either prime, pentagonal, square or triangle. work it out for yourself.

They are all multiples of 3

2

Every number except zero is a factor of every other number. Usually this kind of question is intended as a question about integral factors, those that can be paired with another integer to produce the number as a product. In that sense, 9 is not an integral factor of 11, because the paired number with 9 is 11/9, a number that is not an integer.

If you are referring to a bond between oxygen and fluorine, it would be covalent.

+9

9 is a number

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