"Love by Numbers" is a popular concept that explores the relationship between numbers and romantic compatibility. It often involves using numerology, a belief system that assigns meanings to numbers, to analyze personal traits and predict relationship dynamics. People may calculate their life path numbers or other significant numbers to gain insights into their love lives. The idea has gained traction through various media, including books and online resources, where individuals can find tools to assess their compatibility with partners. Many couples enjoy engaging with numerology as a fun way to deepen their understanding of each other and enhance their relationships.