What is the LCM of 48 56 and 72?

To find the Least Common Multiple (LCM) of 48, 56, and 72, we first need to prime factorize each number.

48 = 2^4 * 3, 56 = 2^3 * 7, and 72 = 2^3 * 3^2.

Then, we take the highest power of each prime factor that appears in any of the numbers: 2^4 * 3^2 * 7 = 1344.

Therefore, the LCM of 48, 56, and 72 is 1344.