Brahmagupta's problem

This problem was given in India by the mathematician Brahmagupta in 628 AD in his treatise Brahma Sputa Siddhanta:

solve the Pell equation

x^{2}-92y^{2}=1.

Brahmagupta gave the smallest solution as

(x,y)=(1151,120).

See also

External links

Weisstein, Eric W., "Brahmagupta's Problem", MathWorld.

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