Taking 1859892

Taking 1862172

Taking 1650012

Dropping 1373388 (123 digits, 2^6 * 3^3 * 5, ECMed C115)

Update 1191114 3876 1123140 74448 (merged)

Taking 1415934

Dropping 1901448 (2^2 * 7 * ECMed C127)

Taking 1443540

Taking 1882748.

Taking 1007118

Dropping 1738020

I added over 3800 indexes with three downdriver runs. I hung in until I reached index 5,000 but the current 2^3*3*5 driver is relentless.