Math & Numbers Fun
1 / 20Explore the fascinating world of numbers — from fun math facts to mind-bending number trivia!
20 quick questionsNo sign-upFree to playTap an answer below to begin ↓
What is the only number that is both a prime number and an even number?
About Math & Numbers Fun
Math & Numbers Fun is a free general knowledge quiz with 20 multiple-choice questions aimed at mixed difficulty. Explore the fascinating world of numbers — from fun math facts to mind-bending number trivia! A typical run takes about 9 minutes, hints are always one tap away, and your streak ticks up the first time you finish a game on a given day.
A few sample questions
1. What is the only number that is both a prime number and an even number?
Answer: 2
2 is the only even prime number. Every other even number is divisible by 2, so they can't be prime.
2. What is the value of pi (π) rounded to two decimal places?
Answer: 3.14
Pi (π) equals approximately 3.14159... It represents the ratio of a circle's circumference to its diameter.
3. In the Fibonacci sequence (1, 1, 2, 3, 5, 8, 13...), what comes after 13?
Answer: 21
In the Fibonacci sequence, each number is the sum of the two before it. So 8 + 13 = 21.
4. How many zeros are in one billion?
Answer: 9
One billion is 1,000,000,000 — a 1 followed by 9 zeros.
5. What is the square root of 144?
Answer: 12
12 × 12 = 144, so the square root of 144 is 12.
Things you'll learn along the way
- A baker's dozen is 13. Medieval bakers would add an extra loaf to avoid penalties for short-changing customers.
- D represents 500 in Roman numerals. C = 100, L = 50, and M = 1,000.
- 6 is a perfect number because its divisors (1, 2, and 3) add up to 6. The next perfect number is 28.
Frequently asked questions
What's a good follow-up after Math & Numbers Fun?
If you enjoyed this general knowledge quiz, try the Daily Challenge — five rotating questions, refreshed every 24 hours, that count toward your streak. You can also use the Surprise Me button on the homepage to land on a different game type for variety.
Can I print Math & Numbers Fun?
Yes — use the Print button at the top of the page for a clean question sheet, or "Print with Answers" to make an answer key. Printed sheets work well for group play at home, in a classroom, or at a senior center.
Will I lose my progress if I close the page?
Your overall progress — XP, streaks, and badges — is saved in your browser automatically. A quiz that's underway restarts if you leave mid-game, but at about 9 minutes, Math & Numbers Fun fits comfortably in one sitting.
How many questions are in Math & Numbers Fun?
Math & Numbers Fun has 20 multiple-choice questions. Each one has four answer options and an explanation that appears after you answer, so you learn something even when you miss.
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