Preferred numbers

Hey kiddo, have you ever heard of preferred numbers?

No? Well, that's okay. Let me explain it to you in a super simple way.

You know how when we count, we start from 1, then 2, then 3, and so on? Preferred numbers are kind of like that, but for bigger numbers.

Basically, some people decided it would be easier if we had specific numbers that we could use for things like measurements or electrical components. That way, we wouldn't have to remember a bunch of random numbers.

So, they came up with a list of "preferred numbers" that are used all around the world. These numbers are special because they are spaced out in a way that makes them easy to remember and use.

For example, one set of preferred numbers is 1, 2, 5, 10, 20, 50, 100, 200, etc. These numbers are used a lot for things like resistors and capacitors in electronics.

Another set of preferred numbers is 2, 2.5, 3.2, 4.7, 6.8, 10, etc. These numbers are used a lot for things like screws and bolts.

So, basically, preferred numbers are just special numbers that make things easier to remember and use. Pretty cool, huh?