According to an study in Aleppo published in the Gazette-Gazette, the most popular numbers are: The world is # 7. Alex points out that the findings are not entirely speculative. There are several reasons why people like the number 7. According to the inscriptions in Babylon, almost every stone is numbered by the word “seven sins,” the seven seas. Seven females. Another comment that makes the number 7 even more special is that there are seven planets in the sky that are visible to the naked eye. Another feature is that from 1 to 10, only 7 is not separate from all numbers in the group .