The "6 million" number of Jews supposedly killed is a monstrously untenable exaggeration. It was once deemed an irrefutable fact that "4 million" persons were "exterminated" at Auschwitz, with "3 million" of those being jews.
Immediately following World War Two at the Nuremberg Kangaroo "trials", it was officially alleged that "4,000,000" people were mass murdered at Auschwitz.
"About 1,500,000 persons were exterminated in Maidanek and about 4,000,000 persons were exterminated in Auschwitz..."
- Nuremberg Trial Proceedings - Indictment : Count Three (see approximately 20% down page for quote)
Jewish Currents is a secular Jewish magazine published quarterly since 1958. In Volume 31, Issue 7, published in August 1977, it states:
"About 3,000,000 Jews were hanged, shot or gassed in Auschwitz" 
Around 1990, the government of Poland revised the number of alleged deaths at the Auschwitz concentration camp to around "one million".
Pictured here are the current and old plaques at Auschwitz, mentioning the "official" number of alleged deaths, at the time:
(click image to enlarge)
Left: This was the plaque on display at the Auschwitz camp until 1989: note the "4 million" victims. Right: This is the plaque currently on display at Auschwitz (2002)
Note the suddenly reduced number of victims to 1.5 million - a casual reduction in the number of deaths by 2.5 million. Question: Does '6 Million' minus 2.5 million still equal '6 Million'?
The Official Auschwitz Museum website currently claims the total number of Jews who were deported to Auschwitz to be 1.1 million (remember, this is just what they claim were deported; not all of those deported to the camp died there):
"As a result of the inclusion of Auschwitz in the process of the mass extermination of the Jews, the number of deportees began to soar. About 197 thousand Jews were deported there in 1942, about 270 thousand the following year, and over 600 thousand in 1944, for a total of almost 1.1 million." -Państwowe Muzeum Auschwitz-Birkenau
source: Winston Smith Ministry of Truth
- The Kabalistic-Occult origins and purpose of the Holocaust™ dogma, and the 6 million number
- Jews initially claimed that "2,000,000 people, mostly jews" were "exterminated" at Mauthausen; Now claim only 14,000 jews died there
- Majdanek: Initially "officially" claimed to be a "death camp" where 1.5 million murdered; Now only 79,000 alleged dead
- Treblinka - Holohoaxers say ~850,000 jews gassed to death - Australian scientists find no evidence whatsoever of mass graves