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太阳1楼命题2、命题3
已知:a^2+ab+b^2=mt^2,a=tv,c=2^k-1,c=mt
整数a>0,b>0,b>0,m>0,t>0,v>0,
素数k>0,p>0,w>0
求证:m=p,t=w
已知:a^2+ab+b^2=mt^2,b=ty,c=2^k-1,c=mt
整数a>0,b>0,b>0,m>0,t>0,y>0,
素数k>0,p>0,w>0
求证:m=p,t=w
令c=2^37-1=223*616318177, m=616318177, t=233, mt^2=233^2*616318177;
t值写错了,将错就错——
解不定方程a^2+ab+b^2-233^2*616318177=0得——
{a == -6566639, b == 2225616},
{a == -6566639, b == 4341023},
{a == -4341023, b == -2225616},
{a == -4341023, b == 6566639},
{a == -2225616, b == -4341023},
{a == -2225616, b == 6566639},
{a == 2225616, b == -6566639},
{a == 2225616, b == 4341023},
{a == 4341023, b == -6566639},
{a == 4341023, b == 2225616},
{a == 6566639, b == -4341023},
{a == 6566639, b == -2225616}
12组整数解中只有3个正整数,不论a还是b,都是这3个正整数或它们的相反数;它们之中都含有素因子233——
2225616=2*2*2*2*3*199*233
4341023=31*233*601
6566639=233*28183
令c=2^37-1=223*616318177, t=616318177, m=233, mt^2=233*616318177^2;
解不定方程a^2+ab+b^2-233*616318177^2=0得——无整数解!t值写错了
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