First, there was already an influential prize in the field of mathematics at that time, which was called the Scandinavian Prize. Now with this famous prize, Nobel may think it unnecessary to set up a math prize. Secondly, Nobel said in his will that the prize money is mainly to "reward those inventions and discoveries that are of great benefit to mankind". Therefore, as an inventor and industrialist, Nobel decided not to set up a mathematics prize, probably because he was not interested in mathematics. Thirdly, abstract mathematics is not closely related to Nobel's career of invention and discovery, which may be one of the reasons why Nobel did not set up a mathematics prize.

In addition, foreign scholars believe that this matter may be related to Nobel's frustration in love. Nobel has a girlfriend who is 13 years younger than him, a Vienna woman Sophie.

Hess, later Nobel discovered that she had a close personal relationship with a mathematician. Nobel has always been bitter about his girlfriend eloping with that mathematician.