www.5129.net > (1x2x3x4x......x9x10x11)除(27x25x24x22)

(1x2x3x4x......x9x10x11)除(27x25x24x22)

1x2x3x4x5x6x7x8x9x10x11÷(27x25x24x22)=(3*9÷27)*(5*10÷25)*(4*6÷24)*(2*11÷22)*7*8=1*2*1*1*56=112

(1x2x3x4x.x9x10x11)÷(27x25x24x22)=(1x2x3x4x.x9x10x11)÷(3x9x5x5x4x6x2x11)=(1x2x3x4x.x9x10x11)÷(2x3x4x5x6x9x11x5)=(7x8x10)÷5=112

(1x2x3x4xx9x10x11)【÷】(27x25x24x22)=(1x2x3x4xx9x10x11)【÷】(3x9x5x10x12x22)=(1x2x3x4xx9x10x11)【÷】(2x3x5x9x10x11x12)=(4x6x7x8)【÷】12=2x7x8=112

=39916800÷356400=112

22个少了:10,20,30,40,..1000.就不止22个还有5,15,25,..995乘上偶数

22=11*2 24=3*8 25=5*5=(5*10/2 23没有 所以 1x2x3x4x5x6x7x8x9x10x11)÷(23x25x24x22)=1*4*6*7*9*2/23=6*7*8*9/23=3024/23

(1x2x3x4x5x6x7x8x9x10x11)÷(23x25x24x22) =(2x11x4x6x5x10)÷(25x24x22)x(1x3x7x8x9)÷23 =2x1512÷23 =3024/23

27x25x24x22=3*9*5*5*3*8*2*11=3*9*5*5*6*8*11 所以上面还有1*2*4*7*10 下面还有5112

(11*10*9*8*7**3*2*1)/(22*24*25*27) =(11*2*4*6*3*9*5*10*8*7*1)/(22*24*25*27) =(22*24*27*50*8*7*1)/(22*24*25*27) =2*8*7*1 =112

1x2x3x4x5x6x7x8x9x10x11=11!=39916800

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