设P1,…,ps(1≤s≤3)是互异的奇素数,则当D=p1…ps,1≤8≤3时,不定方程组X^2-12y^2=1与y^2-Dz^2=4仅有正整数解D=195,(x,Y,z)=(97,28,2).
If Dis not a perfect square positive integer which has at most three distinct prime factors, then the system of indefinite equations in title only has positive integer D = 195, (x, y, z) = (97, 28, 2).