Ouyang Zexuan is a student who loves mathematics very much and has a high talent for mathematics. His interest in mathematics originated from the lower grades of primary school, showing his strong interest and talent in mathematics. Ouyang Zexuan's father is a high school math teacher and his mother is a junior high school science teacher. The influence of family environment also made him interested in mathematics since childhood.

In the second grade of primary school, Ouyang Zexuan was able to work out the answer of 99 times 99, which shows his computing ability. In addition, Ouyang Zexuan especially likes playing chess since he was a child, including chess, China chess and Go. Ouyang's mother thinks that playing chess can cultivate children's thinking and concentration.

When Ouyang Zexuan was in high school, he was able to read the professional book Elementary Number Theory, which reflected the depth and breadth of mathematical ability and knowledge. In addition, Ouyang Zexuan also participated in the A+ class of the school, which was his first contact with the math competition.

Therefore, it can be considered that Ouyang Zexuan's mathematical level is very high, his talent is extremely high and his mathematical foundation is solid.