Math Trivia and Answers

Math Trivia brings the fun into math problems. TriviaQN has a range of math trivia for beginners and the elite. Math trivia can be a part of family game night and even help to brush up on your math skills.

Challenge yourself with a Math Trivia Quiz!

Easy

What is a positive integer that is equal to the sum of its proper positive divisors (excluding the number itself) called?

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Answer: A perfect number.
You might also think of a perfect number as a number that is half the sum of all of its positive divisors, including itself! This definition is at least 2300 years old as it appears in Euclid's "Elements".

Medium

What is the median Erdős number of Fields Medalists?

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Answer: 3
Of course, as time passes, the smallest Erdős number that can still be achieved will necessarily increase, as mathematicians with low Erdős numbers die and become unavailable for collaboration.

Easy

How many obvious/trivial factors does a natural number N have?

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Answer: 4 trivial factors.
The positive +1 and +N and the negative -1 and -N.

Easy

Is 8128 a perfect number?

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Answer: Yes, it is!
Adding up the divisors of 8128: 1 + 2 + 4 + 8 + 16 + 32 + 64 + 127 + 254 + 508 + 1016 + 2032 + 4064 = 8128

Easy

What is the sum of the angles of a triangle?

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Answer: 180 degrees
The angles of a triangle always sum to 180 degrees.

Hard

What Erdős number does Pierre-Simon Laplace have?

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Answer: Pierre-Simon Laplace has an Erdős number of at most 14!
According to "The Erdös number project" a path to Laplace was found by Leonid Yanushevich giving the famous mathematician an Erdös number of at most 14.



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