In a crowded room, two people probably share a birthday

It only takes 23 people to enter a room to give you an even chance that two of them have the same birthday. With 75 people in the room the chances rise to 99 per cent!

Multiplying ones always gives you palindromic numbers

If you multiply 111,111,111 × 111,111,111 you get 12,345,678,987,654,321 - a palindrome number that reads the same forwards or backwards. And that works all the way back down to 11 x 11 (121) or just 1 x 1 (1).

Nature loves Fibonacci sequences

The spiral shapes of sunflowers and other patterns in nature follow a Fibonacci sequence, where adding the two preceding numbers in the sequence gives you the next (1, 1, 2, 3, 5, 8, etc.)

Zero is the only number that can't be represented in Roman numerals.

If you shuffle a pack of cards properly, chances are that exact order has never been seen before in the whole history of the universe

The most popular favourite number is 7.

Cool Maths Facts

Let me know in the comments what you think of these maths facts and even add some of your own, I would love to hear from you! Mrs Arnold