Unlucky Numbers

4

In China, this number is unlucky because:

"·  [sēi]  — considered unlucky since 4 is a homophone with the word for death or suffering [sěi], yet in the Shanghainese, it is a homophone of water ()and is considered lucky since water is associated with money." - Wikipedia

The number is the final 3 words (transliterated: hexakósioi hexēkonta héx), meaning "six hundred sixty-six".

13

"The number 13 is associated with bad luck in some countries, and even has a specifically recognized phobia, Triskaidekaphobia, a word which was coined in 1911. Friday the 13th has been considered an unlucky day since the 1800s, as a combination between an unlucky day, Friday, and the number 13. Another theory as to why the date and number 13 is considered unlucky is that, on the day of Friday the 13th after the final Crusade the pope had sent out men to capture and burn alive the last 13 Knights Templar in order to put an end to the Crusades.

Another theory states that the number 13 is unlucky because, when in years where there were 13 full moons instead of 12, it made it difficult for the monks who were in charge of the calendars. "This was considered a very unfortunate circumstance, especially by the monks who had charge of the calendar of thirteen months for that year, and it upset the regular arrangement of church festivals. For this reason thirteen came to be considered an unlucky number." - Wikipedia

666

"In the New Testament, the Book of Revelation (13:17-18) cryptically asserts 666 to be "the number of a man," associated with the beast, an antagonistic creature that appears briefly about two-thirds into the apocalyptic vision.

In modern popular culture, 666 has become one of the most widely recognized symbols for the Antichrist or, alternately, the Devil. Earnest references to 666 occur both among apocalypticist Christian groups and in explicitly anti-Christian subcultures. An appearance of the number 666 in contemporary Western art or literature is, more likely than not, an intentional reference to this number of the Beast symbolism. Such popular references to 666 are too numerous to list.

It is not uncommon to see the symbolic role of the integer 666 transferred to the digit sequence 6-6-6. Some people take the Satanic associations of 666 so seriously that they actively avoid things related to 666 or the digits 6-6-6. This is known as hexakosioihexekontahexaphobia." - Wikipedia