數字 撲朔迷您 7
A,B,C,D,E,F,G,H,I 為不同的數字，由1到9.
求 ABCD x EFGHI 的最大乘積。
http://mypaper.pchome.com.tw/littleflea/post/1312364457
( 數字6 撲朔解：
Ans : 11 --- 1
Ans : 105263157894736842 --- 2
An : 1034482758620689655172413793 --- 3
Ans : 102564 --- 4
Ans : 1016949152542372881355932203389830508474576271186440674576271186440677966 -- 6
Ans : 1014492753623188405797 --- 7
Ans : 1012658227848 --- 8
Ans : 10112359550561797752808988764044943820224719--- 9
N ＝ 5 ,請自行求解。）
(*N ＝ 5 ,102040816326530612244897959183673469387755 )
(**N = 2 , 105263157894736842
若尾數為3
157894736842105263 x 2 = 315789473684210526 )
***
有某正整數，把尾巴的2，移到最前面，是原數的2倍
105263157894736842 x 2
= 210526315789473684
若尾數為3
157894736842105263 x 2 = 315789473684210526
= 105263157894736842 x 3
(*157894736842105263 是105263157894736842 把數字157894736842
移到最前面。）
若尾數為 4
210526315789473684 x 2 = 421052631578947368
= 105263157894736842 x 4
若尾數為 5,6,6,7,8,9
也竟然都是同樣奇妙！
105263157894736842 是個奇妙的數字！
****奇妙！
2/19 = 0.105263157894736842...
3/19 = 0.157894736842105263...
4/19 = 0.210526315789473684...
5/19 = 0.263157894736842105