Why is the number 7 very often used in Slot machines?

najisami · Sep 23, 2025

Well, apparently, 7 is considered a lucky number in most cultures and has been throughout history.

A few reasons why:

7 continents in the world
7 seas on the planet
7 days in the week
7 planets in our solar system
7 colors in a rainbow
7 wonders of the ancient world

The number 7 first became prominent in casinos back in the 1950s when it was a highly anticipated number in blackjack where three 7’s would give the player a count of 21, with there still being a few Blackjack table games today that pay a bonus if you draw 21 with three 7’s.

It wasn’t long after this that the triple lucky 7’s started being used in slot machines.

eberetta1 · Sep 23, 2025

Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto

My very earthy mother just served us nice pie.

x patrice x · Sep 23, 2025

As you've already written, the number 7 is a culturally and religiously significant number.
I can also well imagine that the symbolism of the 'Trible 7' was intended to counteract possible influence from the church—a "demonization of gambling"—and the obvious association with the devil (666)

.

najisami · Sep 24, 2025

x patrice x said:
As you've already written, the number 7 is a culturally and religiously significant number.
I can also well imagine that the symbolism of the 'Trible 7' was intended to counteract possible influence from the church—a "demonization of gambling"—and the obvious association with the devil (666).

Oh yeah, I forgot about the religious influence too. In the Abrahamic religions, apparently God created the Universe in 7 days

.

MK_ · Sep 24, 2025

I think 7 is associated with a lot of things....7 deadly sins, 7 virtues, 7 years bad luck,

Snow White and the 7 dwarfs😅... ok I'll see myself out now👍

Goggelheimer · Sep 24, 2025

eberetta1 said:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto

My very earthy mother just served us nice pie.

Pluto is no longer considered a planet, see Rick and Morty S1 Ep 9.

Due to a new definition of the planet class on 24th August 2006 it is a dwarf planet.

TeUnit · Sep 24, 2025

People think 7 is lucky.

Brigistul · Sep 24, 2025

Education: the 7 years at home!

Marcwantstowin · Sep 24, 2025

People often think 7 is lucky and that the number 13 is unlucky; however, in Chinese Culture, 13 is considered lucky. A lot of bad luck is associated with the number 13, as the Templars were attacked by Philip IV of France on Friday, 13th October. Another reason that Friday the 13th is considered unlucky.

I like the number 7, as it was my 1st door number I can remember.

fishvolatil · Sep 24, 2025

Goggelheimer said:
Pluto is no longer considered a planet, see Rick and Morty S1 Ep 9.
Due to a new definition of the planet class on 24th August 2006 it is a dwarf planet.

still, even that leaves 8 planets left, where did the 7 planet idea come from? the old sun, moon, etc approach? I doubt there were slot machines out there back then

Goggelheimer · Sep 24, 2025

fishvolatil said:
still, even that leaves 8 planets left, where did the 7 planet idea come from? the old sun, moon, etc approach? I doubt there were slot machines out there back then

I did not come up with the 7 planets idea.

Sunz of Beaches · Sep 24, 2025

Very interesting and thank you for mentioning this! Now I know why the number seven is so much used among casinos worldwide.

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Why is the number 7 very often used in Slot machines?

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