1 person. Mathematics is a compulsory subject in the college entrance examination, and its examination papers are divided into national 1, 2, 3 volumes and new curriculum standard 1, 2 volumes, with a full score of 150. In 2022, the math difficulty coefficient of the college entrance examination was as high as 4 stars, and only 1 person in the country got full marks, that is, Liang, a senior three student of Mianyang International School in Sichuan.