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

Medium

### What number comes next: 1, 11, 21, 1211, 111221, ...?

More information: John Conway's "look and say" sequence has no digits other than 1, 2, and 3 in it, unless the seed number contains such a digit or a run of more than three of the same digit. A degenerate sequence appears with the seed of 22.

Easy

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

More information: The positive +1 and +N and the negative -1 and -N.

Medium

### What is Bertrand Russell's Erdős number?

More information: Russell collaborated very little and no Erdös number can be found using research articles. But, as pointed out by Sachi Sri Kantha at "the Erdös number project" Russell and Albert Einstein did coauthor the Russell-Einstein "Peace" Manifesto of 1955.

Hard

### What Erdős number does Pierre-Simon Laplace have?

Answer: Pierre-Simon Laplace has an Erdős number of at most 14!
More information: 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.

Medium

### What is the median Erdős number of Fields Medalists?

More information: 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.