How Much Do You Know About Numbers?

7 Questions | By Samb | Last updated: Dec 13, 2012 | Total Attempts: 114

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Think you are a numbers whiz? Prove it and take our brief quiz on numbers and number theory.

Questions and Answers

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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