found 168 primes under smoothness-bound 1000
lucky factor found using point (91086287, 115186208)
and curve parameters
a = 49694592
b = -755716652448937323682543
factor: 9
---
unlucky factor found using point (3478493, 6845750)
and curve parameters
a = 9343727
b = -42089450225724990068
factor: 3607
---
factor: 3803
---