1 variable over QQ

p - 100

3.07

q - 1000

-

r - 2000

-

2 variables over QQ

ezgcd

modular

p - 20

0.05

0.33

q - 40

0.33

9.47

r - 100

8.71

-

s - 160

89.57

-

== 3 variables over QQ

ezgcd

modular

p - 20

0.30

q - 40

8.40

r - 60