+-487 How many pairs of positive integers $(x,y)$ satisfy $x^2-y^2=5100$?
+125577 x^2 - y^2 = 5100
(x + y) ( x - y) = 5100
Divisors of 5100 =
1 | 2 | 3 | 4 | 5 | 6 | 10 | 12 | 15 | 17 | 20 | 25 | 30 | 34 | 50 | 51 | 60 | 68 | 75 | 85 | 100 | 102 | 150 | 170 | 204 | 255 | 300 | 340 | 425 | 510 | 850 | 1020 | 1275 | 1700 | 2550 | 5100 (36 divisors)
x y
1276 1254
428 422
260 250
100 70
92 58
76 26
