First factor: The Nazi Ideology

The Nazi Ideology was one of things that appealed the German people. National Socialism or commonly known as Nazism was the ideology and practice of the German Nazi Party. In 1919, Adolf Hitler joined a small right-wing group called the German Workers' Party. He took over as its leader, and changed its name to the National Socialists (Nazis). Unlike other political ideologies it was not articulated in much detail but was broadly defined in Mein Kampf and the NSDAP’s 25 points.

The Nazi Ideology:

Nationalism: The party was only interested to be included in Germany and German’s interests: reviving the German economy, achieving economic self-sustenance, rebuilding its military and providing for the German people. The Nazis had little interest in forming or improving international relationships, except to advance German interests. They did not like International groups like the League of Nations. Hitler had no intention of honouring or following existing foreign treaties
Expansionism: The Nazis and Hitler wanted to unify the German-speaking Aryan peoples of Europe into a German state. Additionally, there was claims that Germany was facing an overpopulation problem after World War I. Hence, Hitler believed that they need to acquire lebenbsraum or living space, to accommodate the needs of the new Germany by providing resources necessary to its people’s well-being. Expansion was needed to end the country’s overpopulation within existing confined territory.

Racialism: In its racial grouping, Nazism viewed what it called the Aryan race as the master race of the world, a race that was better than  all other races. According to Nazi racial theory Aryans were physically stronger, more intellectually advanced and more culturally gifted than other European races. The Nazis saw races like the Jews, Slavs and Romany to be untermensch (‘inferior men’).

Economic: Economic power, prosperity and self-sufficiency were priorities for the NSDAP. The Nazis sought the creation of jobs for unemployed Germans, the restoration of national prosperity, the recovery of industrial production and the rearming of the military. The Nazis promised that they would deal with the problem of unemployment. Additionally, Hitler believed that private ownership was useful in that it encouraged creative competition and technical innovation, but insisted that it had to conform to national interest.

Authoritarianism: The Nazis desired a strong government and extensive state power. They believed that government could not function effectively if it lacked the means to impose itself on society and enforce its policies. All decisions should be rested by the leader. Other political parties that is other than NSDAP is not allowed. Any groups that influence politically would be eliminated.

Militarism: Hitler and his followers believed that re-arming and expanding Germany’s armed forces was essential for the defence of the nation. Rearmament would be carried out in opposition of the restrictions of the Treaty of Versailles.

Was Nazi Ideology the major factor that helped Hitler rise to power?

It is a partly a factor that helped Hitler gain popularity and also rise to power because Hitler promised to solve the problem of unemployment and unemployment was a huge problem since there was the Great Depression. His policies and ideologies also appeared to offer everyone something. His policies was also seen to be able to help the Germans as many of the Germans were in poverty after World War 1.

Mein Kampf is an autobiographical manifesto by National Socialist leader Adolf Hitler, in which he outlines his political ideology and future plans for Germany

Citations;
http://alphahistory.com/nazigermany/nazi-ideology/
http://www.nazism.net/about/nazi_ideology/
https://en.wikipedia.org/wiki/Nazism
http://www.bbc.co.uk/schools/gcsebitesize/history/mwh/germany/nazibeliefsrev1.shtml