How Numbers Became Magical in Daily Life? (Elementary)

One day, Lucy received a love letter from Zhangming. To her surprise, there were no words in the letter, but only some numbers: “584, 5201314.” She was totally confused, and did not know what to think. So she asked her friend Lihua for help. After reading the letter, Lihua translated the numbers into English for Lucy: “I swear that I will love you forever.”…