The website https://primenumbers.vercel.app/ is an interactive educational platform dedicated to teaching the concept of prime numbers across different age groups. To accommodate various learning stages, the site is segmented into two main difficulty levels: “Pemula” (Beginner), which is tailored specifically for elementary school students, and “Mahir” (Advanced), designed for middle school through university-level learners. Through an intuitive interface, users can easily select their appropriate level and navigate through introductory concepts, detailed learning materials, and interactive quizzes to build and test their mathematical understanding.