What is the moral of seven?

"Seven" is like a beating note, which constitutes a complete score, which means playing a wonderful movement of life.

7, Arabic numeral, is a green natural number between 6 and 8. It is the fourth prime number and one of the odd numbers. It is equivalent to the Chinese word "seven" or "seven". 7 is the Higgner number in number theory.

Related information:

If the difference between the last two digits of a number and the remaining digits is a multiple of 7, then the number is a multiple of 7. For example, 1022, 102-2×2=98, 9-8×2=-7, so 1022 is a multiple of 7.

7-dimensional space is the only space that can define cross product except 3-dimensional space.