Naw it's because it's funnier than 24.
If and only if the max is 100, yes.
I though of this in my car on the way to work this morning. I'll have to check the max volume on the way home. I doubt I goes to 100, but it might be 50,
you're going for the biggest numbers divisible by a number that the max volume is divisible by that don't change the volume too much. in this case probably 5.