100+ Math Trivia Questions and Answers

How much do you love math? Let’s find out through a math trivia journey that will separate the true math nerds from those who are allergic to numbers. Discover math trivia and facts and answer math trivia questions in this full collection.

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Math Trivia

Math can be undoubtedly hard at times. But for anyone who has a knack for solving math problems and understanding the world and science behind math, there’s a lot to love about this collection of math trivia.

• The most popular two-digit number is the number 13, also associated as an unlucky number.
• The most popular lucky number is the number 7.
• An improper fraction is any fraction where the numerator is greater than the denominator.
• In ancient civilization, the Romans used roman numerals as the official number system.
• A right angle is an angle at 90 degrees.
• The smallest perfect number is the number 6.
• The mathematical symbol, equal sign, by Robert Recorde.
• The basic metric unit of angle is the dimensionless radian.
• Any straight line is at 180 degrees of itself at any point.
• The least common multiple is the smallest integer that two numbers are divisible by.

Math Trivia Questions and Answers

So how would you fair in a math trivia challenge? Let’s find out through these math trivia question and answer compilation.

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Question	Answer
What is the largest 3-digit prime number?	▶ 997
What is the name for the branch of mathematics dealing with lengths and angles of triangles?	▶ Trigonometry
What do you call a triangle with at least two sides of equal length?	▶ Isosceles Triangle
What do you call a number that can be formed by multiplying two smaller numbers?	▶ Composite Number
What do you call a right-angled triangle?	▶ Right Triangle
Who is the fastest human calculator?	▶ Neelakantha Bhanu Prakash
What’s the square root of 256?	▶ 16
What do you get when you multiply two negative numbers?	▶ A Positive Number
What is the branch of calculus concerned with the theory and applications of integrals?	▶ Integral Calculus
Who coined the term googol to refer to a number with 100 zeroes?	▶ Milton Sirotta
What are the first four digits of Pi?	▶ 3.141
What is the mathematical formula for Newton’s Second Law of Motion?	▶ F=ma
What type of number has no factors other than 1 and itself?	▶ Prime Number
Which theorem is a fundamental relation in Euclidean geometry among the three sides of a triangle?	▶ Pythagorean theorem
In geometry, how many sides are on a heptagon?	▶ Seven
What is the name for the longest side of a right triangle?	▶ Hypotenuse
What Greek mathematician is considered the father of Geometry?	▶ Euclid
What is the only even prime number?	▶ 2
What is the mathematical constant approximately equal to 3.14159?	▶ π (pi)
What name is given to a polygon with five sides?	▶ Pentagon
What do you call a triangle with all sides of different lengths?	▶ Scalene triangle
What is the value of the square root of 144?	▶ 12
What is the term for an angle less than 90 degrees?	▶ Acute angle
What is the name for the result of multiplying a number by itself?	▶ Square
What is the term for a 3D shape with six square faces?	▶ Cube
What does “FOIL” stand for in algebra?	▶ First, Outer, Inner, Last
What is the golden ratio, approximately 1.618, denoted by?	▶ φ (phi)
What do you call a quadrilateral with only one pair of parallel sides?	▶ Trapezoid / Trapezium
What is the name for a number that cannot be expressed as a fraction?	▶ Irrational number
What is the value of 0 factorial (0!)?	▶ 1
What term describes a sequence where each term is the sum of the two before it?	▶ Fibonacci sequence
What is the result when you divide any number by zero?	▶ Undefined
What type of triangle has one angle of exactly 90 degrees?	▶ Right triangle
What do you call angles that add up to 180 degrees?	▶ Supplementary angles
What is the process of finding the derivative of a function called?	▶ Differentiation
What is the formula for the area of a circle?	▶ A = πr²
What kind of function repeats its values at regular intervals?	▶ Periodic function
What is the sum of the interior angles of a triangle?	▶ 180 degrees
What kind of graph uses bars to represent data?	▶ Bar chart
What is the point called where two lines intersect?	▶ Intersection point
What is an algebraic expression with more than one term called?	▶ Polynomial
What’s the mathematical term for “rate of change”?	▶ Derivative
What do you call the highest exponent in a polynomial?	▶ Degree
What shape has all points equidistant from its center in a plane?	▶ Circle
What is the value of i² (imaginary unit squared)?	▶ -1
What is 10 to the power of 3?	▶ 1,000
What is the measure of a straight angle?	▶ 180 degrees
What do you call a number that is divisible only by 1 and itself?	▶ Prime number
What is the formula for the circumference of a circle?	▶ C = 2πr
What do you call a line that touches a curve at only one point?	▶ Tangent
What type of number is 0.333…?	▶ Repeating decimal / Rational number
What is the term for an angle greater than 180° but less than 360°?	▶ Reflex angle
What is the factorial of 5 (5!)?	▶ 120
What is the 3D shape with a circular base tapering to a point?	▶ Cone
What are the coordinates of the origin in a Cartesian plane?	▶ (0, 0)
What is the name for an 8-sided polygon?	▶ Octagon
What is the midpoint formula for two points (x₁, y₁) and (x₂, y₂)?	▶ blur toggle=click/2, (y₁+y₂)/2)[/blur]
What is the slope-intercept form of a line?	▶ y = mx + b
What is the mean of 2, 4, 6, 8, and 10?	▶ 6
What is the probability of rolling a 6 on a fair die?	▶ 1/6
What do you call the top part of a fraction?	▶ Numerator
What do you call the bottom part of a fraction?	▶ Denominator
What is the longest diagonal in a rectangular prism called?	▶ Space diagonal
What is the term for an angle of exactly 60 degrees in a triangle?	▶ Equilateral triangle angle
What is the quadratic formula?	▶ x = [-b ± √(b²-4ac)]/(2a)
What is the shape formed by connecting midpoints of a quadrilateral?	▶ Varignon parallelogram
What is the number of degrees in a full circle?	▶ 360 degrees
What is a number’s distance from zero called?	▶ Absolute value
What is the matrix operation that flips a matrix over its diagonal?	▶ Transpose
What is the result of integration called?	▶ Antiderivative
What do you call a straight path that extends forever in both directions?	▶ Line
What is the sum of two vectors called?	▶ Vector sum / Resultant
Who is the “Prince of Mathematicians”?	▶ Carl Friedrich Gauss
What is the smallest two-digit odd number?	▶ 11
What are the first 10 prime numbers?	▶ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29
What is the smallest prime number?	▶ 2
What is the predecessor of 100?	▶ 99
Which comes first alphabetically: Circle, Line, or Point?	▶ Circle
What measures the distance around a circle?	▶ Circumference
What positive integer is neither prime nor composite?	▶ 1
Is there a smallest number on the real number line?	▶ No—there’s always a smaller number
What digit appears in the billionth place of 1/9?	▶ 1
What is the largest single-digit prime number?	▶ 7
What is the 6th prime number?	▶ 13
Who formulated the laws of motion and co-invented calculus?	▶ Isaac Newton
What is the formula for the sum of first n natural numbers?	▶ n(n+1)/2
What is the volume formula for a right circular cylinder?	▶ V = πr²h
What are numbers that are additive inverses?	▶ Additive inverses
What is the approximate value of the constant e?	▶ 2.71828