(21,360)=3≠1
So, it does not have integral solution.
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由 Raceleader 於 星期日 四月 13, 2003 9:08 pm
由 Raceleader 於 星期日 四月 13, 2003 9:08 pm
21x-360y=1
3(7x-120y)=1
7x-120y=1/3
If x,y are integer, then 7x-120y is also integer, contradict the above result
So, 21x-360y=1 does not have integral solution
3(7x-120y)=1
7x-120y=1/3
If x,y are integer, then 7x-120y is also integer, contradict the above result
So, 21x-360y=1 does not have integral solution
[問題]21x-360y=1
由 ming 於 星期日 四月 13, 2003 9:06 pm
如何証明21x-360y=1無正整數解?