Twenty-nine years ago today, March 19, 1996 (February 1, 1996 in the lunar calendar), mathematician Chen Jingrun passed away. Mathematician Chen Jingrun On March 19, 1996, the famous mathematician Chen Jingrun was hospitalized for a long time due to illness. After rescue, he passed away at the age of 63. Chen Jingrun was born in 1933 in Fuzhou, Fujian. Researcher, member of the Faculty of China Academy of Sciences. Graduated from Xiamen University in 1953 and stayed there to work in a library. After 1957, he served successively as assistant researcher and researcher at the Institute of Mathematics, China Academy of Sciences. Member of the Department of Mathematics and Physics, China Academy of Sciences. The paper published in 1973,"Large Even Numbers are the Sum of the Product of a Prime Number and No More than Two Primes"(i.e."1 2"), took a big step forward in the proof of Goldbach's conjecture and was promoted by the international academic community. It is called "Chen's Theorem". Chen Jingrun has achieved many major achievements in the research field of analytic number theory, and has won many awards such as the first prize of the National Natural Science Award, the He Liang He Liki Gold Medal, and the Hua Luogeng Mathematics Award. He is a representative of the 4th, 5th and 6th National People's Congress. He is the author of "Interesting Talk on Mathematics","Combinatorial Mathematics", etc. Chen Jingrun returns to his alma mater at Xiamen University. Chen Jingrun's handwriting