Integral points on the elliptic curve y 2 = x 3 + 27 x − 62 Open image in new window

We give a new proof that the elliptic curve y 2 = x 3 + 27 x − 62 Open image in new window has only the integral points ( x , y ) = ( 2 , 0 ) Open image in new window and ( x , y ) = ( 28 , 844 , 402 , ± 15 , 491 , 585 , 540 ) Open image in new window using elementary number theory methods and some properties of generalized Fibonacci and Lucas sequences.