Recently, a migrant worker named Yu Jianchun from Henan province went viral after deducing a series of difficult mathematical formulas, and then teaching them to professors and doctors at prestigious Zhejiang University, China News reported. He was interviewed by CNN and described as China’s very own Will Hunting from the film "Good Will Hunting." Now, Yu is working as a data analyst in Southeast Asia, earning a monthly salary of more than 10,000 RMB ($1,454).
Yu was invited to share five of his discoveries at Zhejiang University. His analysis was recognized by Cai Tianxin, a professor at the university, who spotted something special in his work: a set of criteria of Carmichael numbers and a series of higher order congruences.
When asked whether he considered himself a mathematics talent, Yu said he is just interested in pseudoprime numbers, and that he deduced all the formulas on the basis of number theory. He did not draw extensively on advanced mathematics in his deduction, as he never had the opportunity to study it formally. However, the lack of formal education made him open-minded and less prone to being restricted by his own mindset.
Yu disclosed that he thinks about number theory for two hours every day, and is currently working on two more formulas. He hopes to pursue further study and do mathematics research in the future, though the 34-year-old's most immediate goal is to get married and settle down.