What is the LCM of 4 and 6 and 10 and 15?
To find the Least Common Multiple (LCM) of multiple numbers, you first need to find the prime factorization of each number. The prime factorization of 4 is 2^2, 6 is 2 * 3, 10 is 2 * 5, and 15 is 3 * 5. Then, you take the highest power of each prime factor that appears in any of the factorizations. So, the LCM of 4, 6, 10, and 15 is 2^2 * 3 * 5, which equals 60.