But there once lived a person whose IQ was said to be between 250 and 300! William James Sidis, the most intelligent man to ever walk the Earth, was a child prodigy and an exceptional mathematician.But there once lived a person whose IQ was said to be between 250 and 300! William James Sidis

Who is the smartest person on earth right now?

30 Smartest People Alive TodayMislav Predavec.Kim Ung-Yong. Neil deGrasse Tyson. John H. Marilyn vos Savant. Judit Polgár. Christopher Langan. Born in San Francisco in 1952, self-educated Christopher Langan is a special kind of genius. Paul Allen. Billionaire Paul Allen reportedly has an IQ of between 160 and 170. More items

Who is the No 1 intelligent person in the world?

1. Isaac Newton. He is an extraordinary genius physicist, mathematician, astronomer and alchemist. He is considered as the most influential and greatest scientist ever lived.

Who has an IQ of 400?

Marilyn vos SavantBornMarilyn Mach August 11, 1946 St. Louis, Missouri, U.S.OccupationAuthor columnistSpouseRobert Jarvik ​ ( m. 1987)​Website1 more row