# How Much Do You Know About Numbers?

7 Questions | Total Attempts: 120  Settings Create your own Quiz Think you are a numbers whiz? Prove it and take our brief quiz on numbers and number theory.

• 1.
Which of the following numbers is a multiple of 3?
• A.

173191

• B.

222222

• C.

914333

• D.

333332

• E.

None of the above

• 2.
Which of the following numbers, when squared, is equal to the opposite of one?
• A.

-1

• B.

I

• C.

-i

• D.

Pi

• E.

-pi

• 3.
Which of the following sets is larger: the set of real numbers or the set of complex numbers?
• A.

Real numbers

• B.

Complex numbers

• C.

Both are equally large

• D.

Both contain an infinite number of elements so it is impossible to determine largeness

• E.

They are the same set

• 4.
If you add 1/4 + 1/5 + 1/6 ... indefinitely, you reach:
• A.

1

• B.

1/2

• C.

Pi

• D.

E

• E.

Infinity

• 5.
Which is true regarding prime numbers?
• A.

As numbers increase the density of prime increases

• B.

They are a finite set

• C.

They exist for imaginary numbers

• D.

They are exclusive to the natural numbers

• E.

None of the above

• 6.
Which of the following represents the sum of the numbers between 1 and 100?
• A.

2000

• B.

15000

• C.

4525

• D.

5050

• E.

None of the above

• 7.
Which of the following is true regarding division by zero?
• A.

It results in the imaginary number

• B.

It is undefined

• C.

It is equal to infinity

• D.

It is equal to zero

• E.

None of the above

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