Question: What's your favourite number

John Paterson answered on 13 Jun 2019:

Probably 5? It just seems a really solid number and I always liked the 5x table when I was a kid! Although an interesting number is 1.618 – it’s what is known as the ‘Golden Ratio’ because it is a number that comes up a lot in nature in naturally-occurring patterns. For example, your hand fits into your forearm 1.618 times, so is an example of the golden ratio in nature.