5:8 Xiao 56 group 7 Xiao 2 1 group 6 Xiao 6 group?

4:8 Xiao 70 group 7 Xiao 35 group 6 Xiao 15 group 5 Xiao 5 group?

3:8 Xiao 56 Group 7 Xiao 35 Group 6 Xiao 20 Group 5 Xiao 10 Group 4 Xiao 4 Group?

2:8 Xiao 28 group 7 Xiao 2 1 group 6 Xiao 15 group 5 Xiao 10 group 4 Xiao 6 group 3 Xiao 3 group?

Extended data:

Everything counts. Pythagoras

Geometry can't be king. -Euclid

Mathematics is the language that God uses to write the universe. Galileo

I am determined to give up the only abstract geometry. In other words, I don't think about the problems that are only used to practice my thoughts. I did this to study another kind of geometry, that is, geometry aimed at explaining natural phenomena. -Descartes (rene descartes 1596- 1650)

Mathematicians try to find a certain order of prime sequence on this day. We have reason to believe that this is a mystery, and the human mind can never penetrate it. -Euler

Some beautiful theorems in mathematics have such characteristics: they are easy to be summarized from facts, but the proofs are extremely profound. Mathematics is the king of science. Gauss

This is the advantage of a well-structured language, and its simplified symbols are usually the source of abstruse theories. -Laplace (Pierre-Simon Laplace 1749- 1827)

It would be a serious mistake to think that it is only necessary in geometric proof or sensory evidence. -Cauchy (augustin louis cauchy 1789- 1857)

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