Prime Time (Factors & Multiples)

Prime numbers are the 'atoms' of math. Let's split numbers into their building blocks! 🧱

📖 Concepts

1Factors & multiples — what's the difference?→2Prime vs composite numbers→3Sieve of Eratosthenes — finding primes→4Prime factorization (factor tree)→5HCF (Highest Common Factor)→6LCM (Least Common Multiple)→7Perfect numbers & other special numbers→8📌 Formula Sheet — Prime Time→

🎯 Practice questions

The tier ladder: 🌱basic warms you up, ⚡regular is exam-paced, 🔥hard twists the same ideas. The 🏆olympiad tier matches the “Achievers” section of the real exam.