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.

Medium

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

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.

Medium

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

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

### Is 8128 a perfect number?

Adding up the divisors of 8128: 1 + 2 + 4 + 8 + 16 + 32 + 64 + 127 + 254 + 508 + 1016 + 2032 + 4064 = 8128

Easy

### Which mathematician has an Erdős number of zero (0)?

As the Erdős number describes the "collaborative distance" in authorship of mathematical papers between mathematician Paul Erdős and another person it is only natural that Paul Erdős holds this position.

Easy

Easy

### Which mathematician published more total pages of mathematics during his lifetime than any other mathematician in history?

Swiss-born Euler is held to be one of the greatest mathematicians in history. He made pioneering contributions to several branches of mathematics and introduced much of the modern mathematical terminology and notation.

Easy

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

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".

Easy

Easy

Easy

### What is the sum of the angles of a triangle?

The angles of a triangle always sum to 180 degrees.