Question: what is the lcm of 8 and 12 using prime factorization?
Answer: List the prime factors of each number. Find the union of these primes. Multiply these numbers: 2 × 2 × 2 × 3 = 2 4 2\times 2\times 2\times 3=24 2×2×2×3=24. This is the LCM.