You are Here: Home >< A-levels

Maths watch

1. Is 0 a self-descriptive number?
2. (Original post by Kamila_Kamizaki)
Is 0 a self-descriptive number?
Yes

In mathematics, a self- descriptive number is an integer m that in a given base b is b digits long in which each digit d at position n (the most significant digit being at position 0 and the least significant at position b - 1) counts how many instances of digit n are in m.
3. (Original post by Den987)
...
Just so you are aware, the OP is trying to gain an advantage in a maths competition.
4. (Original post by Mr M)
Just so you are aware, the OP is trying to gain an advantage in a maths competition.
The answer I gave was based on the definition that I found online when you search the question they gave, which I posted below . But either way, thanks for letting me know.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: October 6, 2017
Today on TSR

Poll

All the essentials

Student life: what to expect

What it's really like going to uni

Essay expert

Learn to write like a pro with our ultimate essay guide.

Create a study plan

Get your head around what you need to do and when with the study planner tool.

Resources by subject

Everything from mind maps to class notes.

Study tips from A* students

Students who got top grades in their A-levels share their secrets