# 6 (number)

The six (6) is the natural number of between five and seven. She's just.

## Mathematics

The 6 is the smallest composite number with two distinct prime factors, and the third triangular number.

It is the smallest perfect number: 6 = 1 2 3 and the factorial of 3 is what is remarkable because there are no other three numbers whose product is equal to their sum. Is the same. The equation has the only solution (without permutations ) x = 1, y = 2 and z = 3 Finally, it is

The cube (from the Greek ) or hexahedral ( from Latin ) cube is one of the five Platonic solids and has six equal areas. A tetrahedron has six edges and six vertices octahedron. With regular hexagons can fill a plane without any gaps.

6 is a two-dimensional kiss number.

In addition:

## Natural sciences

The insects have six legs like all Sechsfüßer.

Many crystals form hexagonal ( hexagonal ) structures such as natural ice and snowflakes are sechsstrahlig. In nature there is the hexagonal form in the walls of the honeycomb as a nearly optimal ratio of wall material is produced to room volume, hexagons are everywhere.

## History and Society

The 6 is the least significant performance note to German schools. Swiss schools the grade 6 is the best rating.

In football, will wear the number 6 (also called six- position ) is regarded as number of defensive midfielder.

## Culture, literature, music, and spiritual life

To the French writer Jean Cocteau gathered after the First World War, a group of neo-classical composers, Les Six was called (the six ).

## Mythology and religion

According to the Bible, God created the earth in six days (see Augustine's remark in the theocracy ).

Buddhism divides the world into six realms in which a being can be reborn. They are depicted on the Tibetan Wheel of Life.

The hexagram ( six-pointed star ), a star with six rays, which is formed of two superimposed equilateral triangles, is a religious symbol in some religions, as in Tantric Hinduism and in Buddhism. When David Stern (Hebrew מגן דוד, Magen David - " Shield of David "), it is the symbol of Judaism and the people of Israel. Derived from it is a sign of alchemy, in which the overlapping triangles symbolize the elements. As a so -called brewer's the hexagram was the guild sign of brewers and maltsters. Hence the use derives in tavern signs.

The Book of Changes ( Yijing ) is based on sixty-four hexagrams, the yin or yang lines consist of six each. On the importance of Six in Chinese numerology see there.