what is the lcm of 6 and 10? 2 10 30 60

Explanation:

Step1: Prime - factorize the numbers

$6 = 2\times3$; $10 = 2\times5$

Step2: Identify the highest - power factors

The factors are 2, 3, and 5. The highest power of 2 is $2^1$, of 3 is $3^1$, and of 5 is $5^1$.

Step3: Calculate the LCM

$LCM(6,10)=2\times3\times5 = 30$

Answer:

30