Lucky Numbers Around the World: Cultural Beliefs Behind Number Generators
A random number generator doesn't care whether it hands you a 4, an 8, or a 13. People care a lot. Across cultures, certain numbers are considered blessed, cursed, or best avoided — and those beliefs quietly shape everything from building design to wedding dates to the lottery numbers people choose.
Lucky Numbers Make Lotteries Less Profitable for You
It's natural to think that playing a "lucky" number can't hurt. Mathematically, every number combination has exactly the same chance of being drawn. But lucky numbers aren't harmless — they're popular.
When millions of people favor the same numbers (birthdays, sevens, eights), those combinations get chosen more often. If they come up, the prize is split among many more winners. So a lucky number doesn't improve your odds of winning, but it can reduce how much you win.
We call this the crowded-luck penalty: the hidden cost of choosing numbers that lots of other people also find lucky. It's one of the best arguments for letting a truly random generator pick your numbers. We cover it in more depth in How to Choose Lottery Numbers (Smart vs Random).
China: 8 Is Wealth, 4 Is Death
In Mandarin, the word for eight (bā) sounds similar to fā, which is associated with wealth and prosperity. That association is so strong that the Beijing Olympics opened on 08/08/2008 at 8:08 p.m. local time.
Four has the opposite reputation. Sì (four) sounds close to sǐ (death). The fear of the number four, called tetraphobia, is common across China, Japan, Korea, and other parts of East Asia. Many buildings skip fourth floors, and phone numbers and license plates containing lots of fours can be harder to sell.
Six (liù) is also considered lucky because it sounds like "flowing" or "smooth," and nine (jiǔ) sounds like "long-lasting."
Try the China Sports Lottery number generator.
Japan: 4 and 9
Japan shares the East Asian aversion to four, since one reading of four, shi, sounds like the word for death. Nine can also be unlucky, because one reading, ku, sounds like the word for suffering or agony. Some hospitals avoid rooms numbered 4 or 9.
Seven, on the other hand, is generally considered lucky, with connections to Buddhist traditions and the Seven Lucky Gods (Shichifukujin).
Try the Japan Loto 6 number generator.
Italy: 17, Not 13
In most Western countries, 13 is the unlucky number. In Italy, the traditionally unlucky number is 17. The reason is surprisingly clever: in Roman numerals, 17 is XVII, which can be rearranged to spell VIXI — Latin for "I have lived," a phrase associated with tombstones and meaning "my life is over."
The superstition runs deep enough that when Renault sold its R17 car in Italy, it was marketed as the R177. Meanwhile, 13 is often considered lucky in Italy.
Try the Italy SuperEnalotto number generator.
The West: 13 and 7
Triskaidekaphobia, the fear of 13, is one of the most widespread number superstitions in the Western world. Many hotels and apartment buildings skip the 13th floor; an often-cited Otis Elevator Company estimate put the share of buildings with elevators that skip a labeled 13th floor at around 85%. Friday the 13th carries its own dread.
Seven sits on the lucky side. It shows up in the seven days of creation, seven wonders of the ancient world, and slot machines everywhere. When people are asked to pick a "random" number between 1 and 10, seven is chosen far more often than chance would predict.
Try the USA Powerball number generator or the USA Mega Millions number generator.
Hong Kong: Mixing Sounds
Hong Kong, where Cantonese is widely spoken, has its own sound-based superstitions. Eight is lucky, four is unlucky, and combinations matter: some number sequences are prized because they sound like phrases about getting rich, while others are avoided because they sound like "certain death."
Try the Hong Kong Mark Six number generator.
Spain: Lottery as a National Tradition
Spain's Christmas lottery, El Gordo ("The Fat One"), is one of the largest and oldest lotteries in the world, running since 1812. Spaniards often buy shared tickets with coworkers, families, and friends, so a winning number can make an entire town rich at once. Some people chase numbers tied to dates or lucky events, while others seek tickets sold in shops with a history of winners.
Try the Spain La Primitiva number generator.
What Luck Research Says
Psychologist Richard Wiseman, known for his research on luck, found that people who consider themselves lucky tend to behave differently: they notice more opportunities and are more open to new experiences. In other words, feeling lucky can change behavior — but it doesn't change random outcomes.
That's the key distinction for number generators. A lucky number may make you feel more confident, but a fair random draw can't tell the difference between an 8 and a 4.
Quick Reference
| Culture | Lucky | Unlucky | Why |
|---|---|---|---|
| China | 6, 8, 9 | 4 | Sounds like wealth / death |
| Japan | 7 | 4, 9 | Sounds like death / suffering |
| Italy | 13 | 17 | XVII → VIXI ("I have lived") |
| Western | 7 | 13 | Religious and folk traditions |
| Hong Kong | 8 | 4 | Cantonese sound associations |
Using a Random Generator Without Losing the Fun
If you enjoy lucky numbers, you don't have to give them up. Try a luck-anchored pick: choose one meaningful number yourself, and let a generator randomly fill the rest. You keep the ritual, and you reduce how much your ticket overlaps with everyone else's favorites.
Quick Answers
Why is 8 lucky in China?
In Mandarin, the word for eight, bā, sounds similar to fā, a word associated with wealth and prosperity. That sound connection makes eight the luckiest number in Chinese culture. It was a big enough deal that the Beijing Olympics opened on 08/08/2008 at 8:08 p.m. local time.
Why is 17 unlucky in Italy?
In Roman numerals, 17 is written XVII, which can be rearranged into VIXI — Latin for "I have lived," a phrase associated with death. Because of that, 17 is traditionally considered unlucky in Italy, much like 13 in other Western countries. The superstition has even affected product names.
Do lucky numbers help you win the lottery?
No. Every combination in a fair lottery draw has exactly the same chance of being picked. Lucky numbers can actually cost you, because popular numbers like birthdays and sevens are chosen by many players, so a winning combination is more likely to be shared by several winners.
Where Number Superstitions Are Heading
As lotteries and games move online and more people use quick-pick and app-based random selections, our prediction is that the influence of lucky numbers on real draws will steadily shrink — but number superstitions will survive in design and marketing, where brands will keep choosing lucky prices, launch dates, and phone numbers for global audiences.