It had to have been in the millions for the reasons already mentioned. Probably between 2-4. With a large numbers of those dying from disease. A tiny fraction of the 70-80 million people that died as a result of ww2.

This is why I get annoyed when people claim it was just 30,000 or 150,000 or some shit. You are chasing after a strawman that can be used to discredit you and make them seem like the truth seekers, when in fact they've clearly been lying and exaggerating the overall numbers and this almost certainly could be proven, or at least pointed out to be nearly impossible. It's a trap that many idiots fall for.