🔢 Math & Numbers Trivia
Quiz Set 3 — Famous Numbers
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
What is Euler's number (e) approximately?
Euler's number e ≈ 2.71828...
Question 2 of 10
What is the Golden Ratio approximately?
The Golden Ratio φ ≈ 1.618033...
Question 3 of 10
What number is considered unlucky in Western culture?
The number 13 is associated with bad luck in Western superstition.
Question 4 of 10
What is the square root of 2 approximately?
√2 ≈ 1.41421356...
Question 5 of 10
What is a googol?
A googol is 1 followed by 100 zeros (10^100).
Question 6 of 10
What is absolute zero in Celsius?
Absolute zero is −273.15°C (0 Kelvin).
Question 7 of 10
What is the speed of light in km/s (approx)?
Light travels at approximately 299,792 km/s.
Question 8 of 10
What number is both a square and triangular number?
1 is both the first square number (1²) and first triangular number.
Question 9 of 10
What is Avogadro's number approximately?
Avogadro's number ≈ 6.022 × 10²³.
Question 10 of 10
How many digits does the number pi have?
Pi is irrational and has infinitely many non-repeating digits.