..and reserving 299208

Unreserving 611156. I had high hopes for this one. It could have become another one of the "longest ever" with one nice downdriver run, but it just mutated to 2 * 3^3 and at 165+ digits, it's too much for me with only faint hope.

The c148 has survived 200+ curves at 260e6.

Dropping 988480 (2^3*3*5 driver, 150 digits, C143 has survived 4000@3e6)

Dropping 696120 (153 digits, 2^3*3, C144 has survived 4000@3e6)

Taking 182940 472500

Dropping 9436 (182 digits, 2*3^3, 171-digit cofactor has survived 4000@3e6 ECM)

Dropping 1920 (191 digits, 2^2*3^3*5*7^2, C175 has survived 4000@3e6 ECM)

Dropping 8352 (190 digits, 2^2 * 7 * C189 which has survived 4000@3e6)

Dropping 339396 (147 digits, 2^3*5, C144 has survived 4000@3e6)

Taking 312330 and 111426.

Dropping 46140 (151 digits, 2^5*3*7, C139 has survived 4000@3e6)