144

jinjing 2010-04-13 20:28:01 ( reads)

123456....3!3!
214365....3!3!
213456....3!3!
214356....3!3!
so,144.

跟帖(10)

You are close, but not exactly

72=(5!-4!*2)

This seems to be the best solution, can you reveal details?

Thanks.

details? please!

回复：details? please!

2*4!可以理解，5!仍不太明白。anyway, thank you!

回复：2*4!可以理解，5!仍不太明白。anyway, thank you!