Numbers & Maths Trivia Quiz

Question 1

What are the first five digits of Pi (π)?

Accepted Answer

3.1415

Answer

3.1416

Answer

3.1419

Answer

3.1412

Question 2

What is a 'googol'?

Accepted Answer

1 followed by 100 zeros

Answer

A billion billion

Answer

1 followed by 1,000 zeros

Answer

The largest known prime number

Question 3

What is the Fibonacci sequence?

Accepted Answer

Each number is the sum of the two before it: 0, 1, 1, 2, 3, 5, 8...

Answer

A sequence doubling each time: 1, 2, 4, 8...

Answer

A sequence of prime numbers

Answer

Each number multiplied by 3: 1, 3, 9, 27...

Question 4

Who invented the concept of zero as a number?

Accepted Answer

Indian mathematicians (around 5th–7th century AD)

Answer

The ancient Greeks

Answer

The ancient Egyptians

Answer

The Babylonians (as a placeholder only)

Question 5

What is a 'prime number'?

Accepted Answer

A number divisible only by 1 and itself

Answer

Any odd number

Answer

A number with exactly 3 factors

Answer

The first number in any sequence

Question 6

The Golden Ratio (approximately 1.618) is often denoted by which Greek letter?

Accepted Answer

Phi (φ)

Answer

Pi (π)

Answer

Sigma (σ)

Answer

Delta (δ)

Question 7

What is 'infinity' in mathematics?

Accepted Answer

A concept describing something without any limit or end

Answer

The largest possible number

Answer

10 to the power of 100

Answer

A number larger than a googol

Question 8

What is a perfect number?

Accepted Answer

A number equal to the sum of its proper divisors (excluding itself)

Answer

A number with no prime factors

Answer

A number divisible by all digits 1-9

Answer

An even prime number

Question 9

What does 'algorithm' originally refer to?

Accepted Answer

The name of a Persian mathematician (Al-Khwarizmi) who pioneered algebra

Answer

A computer program

Answer

A form of mathematical proof

Answer

A complex formula

Question 10

How many sides does a heptagon have?

Accepted Answer

7

Answer

5

Answer

6

Answer

8

Question 11

What is Pythagoras's theorem?

Accepted Answer

a² + b² = c²

Answer

a + b = c

Answer

a × b = c²

Answer

c² − a² = b

Question 12

What number do the digits of any multiple of 9 always add up to (directly or eventually)?

Accepted Answer

9

Answer

3

Answer

6

Answer

18

Question 13

What is a 'palindrome number'?

Accepted Answer

A number that reads the same forwards and backwards

Answer

A prime number

Answer

A number divisible by 11

Answer

A number in the Fibonacci sequence

Question 14

What is the value of 0! (zero factorial)?

Accepted Answer

1

Answer

0

Answer

Undefined

Answer

Infinity

Question 15

Who proved that there are infinitely many prime numbers?

Accepted Answer

Euclid

Answer

Archimedes

Answer

Pythagoras

Answer

Newton

Question 16

What famous unsolved problem concerns whether every even number greater than 2 is the sum of two primes?

Accepted Answer

Goldbach's Conjecture

Answer

Riemann Hypothesis

Answer

Fermat's Last Theorem

Answer

The P vs NP problem

Question 17

How many degrees are in a circle?

Accepted Answer

360°

Answer

180°

Answer

270°

Answer

400°

Question 18

What is the square root of 144?

Accepted Answer

12

Answer

11

Answer

13

Answer

14

Question 19

What branch of mathematics deals with the study of shapes, sizes, and positions?

Accepted Answer

Geometry

Answer

Algebra

Answer

Calculus

Answer

Statistics

Question 20

Andrew Wiles famously proved which previously unsolvable theorem in 1995?

Accepted Answer

Fermat's Last Theorem

Answer

The Riemann Hypothesis

Answer

Goldbach's Conjecture

Answer

The Four Colour Theorem