Why is 7 a lucky number, you may ask yourself. That old number 7 is always popping up and often seems to be the first number on people’s minds. In fact, research has found that when people are asked to think of a number between 1 and 10, most people will think of the number 7. So, what makes this number such a favourite with the majority – do we even know why we favour it? Perhaps not…

Stay tuned as we delve deeper into the very question: Why is 7 a lucky number for so many of us?

The history of Number 7

The number seven has had several noteworthy associations to it throughout history: Seven days of the week, seven wonders of the world, seven continents, seven seas … hell, there are even seven colours in the rainbow… go on… you all know the song!

But the number 7 goes even deeper than that, because there are solid connections to it in religion too, which may explain why 7 is a particularly lucky number for some.

In Judaism, there are seven heavens, Muslims walk around the Kaaba seven times on their pilgrimage to Mecca, and in Christianity the number seven appears in the Seven last words of Jesus on the cross, the Seven Virtues and the Seven deadly sins. And the Chinese are in on the number 7 too – for them, seven represents the concept of harmony that is ying, yang and the five elements.

7 fun facts about number 7

You can’t say that our little 7 friend is boring. Just check out these fun facts about the lucky number 7…

1. We remember up to 7’s

When it comes to memory, seven seems to be the magic number. When it comes to remembering a series of numbers accurately, on average most people will only be able to recall the first seven digits accurately.

2. The ‘7-year Itch’

The ‘7-year Itch’ is a term in psychology which says that the happiness in a relationship starts decreasing after 7 years of marriage. Can anyone attest to that?

3. Seven spots on a ladybird

Ladybirds have 7 spots! Well, the most common black and red ones do anyway – they love an odd number.

4. It’s bad luck in Craps

Some people won’t say the word “seven” at a craps table because they think it’s bad luck, even refer to seven as the devil. They just call THAT number “it” instead. Rude.

5. Numerology is all over it

In numerology, the number 7 is used to describe intellectuals, deep thinkers, psychic influences, and wisdom. That’s deep, man.

6. Seven musical notes

There are seven basic musical notes: ‘do’, ‘re’, ‘me’, ‘fa’, ‘so’, ‘la’ and ‘te’!

7. Seven bones in our necks

Most mammals have 7 bones in their neck, and that’s including us humans! Holding up our heads obviously need a great deal of joint effort – bada-boom!

We bet you never knew so much about number 7, eh? Well, it’s clear to see why so many people see 7 as a lucky number. From history, to religion, to science, nature and mathematics, there are countless reasons why 7 is such a lucky number for us folks.

So now that you know what you know, why is 7 a lucky number for you?


Aviva is the Content Manager at PlayOJO and writes blogs, copy and all things OJOey. A copy/content marketer for over 7 years, she gets her creative juices flowing by singing, dancing (around her living room), and belly laughing regularly.