Base36

Do you know what numbers are? They are little things we use to count things, like how many candies we have or how many toys we have. But sometimes numbers can get really big and we need to use lots of little numbers to make one big number.

Base36 is a way of writing down big numbers using just 36 different symbols. These 36 symbols include the numbers 0 to 9 and the letters A to Z.

Let's say we want to write down the number 100 in base36. We would use the symbol "2S" because in base36, the number 100 is represented as "2S". It looks a bit strange compared to our normal number system, but it works just the same as counting with regular numbers.

Base36 is used in computers to make short unique identifiers that are easy to use and remember. This is important because computers can handle millions of numbers in just a few seconds, so it's really useful to use a system like base36 to keep track of all of them!