Understanding Least Common Multiple (LMC)

What does LMC stand for?

• Largest Multiple Common

• Least Common Multiple

• Least Multiple Common

• Largest Common Multiple

Which of the following is a step in the conventional method for finding LMC?

• Finding the smallest common multiple

• Subtracting the smallest number

• Using prime factorization

• Dividing by the largest number

In the conventional method, why is 0 not considered as the LMC?

• Because it is not a valid number

• Because it is not a common multiple

• Because it would be the LMC for all numbers

• Because it is not a multiple

What is the first step in the practical method for finding LMC?

• Subtract the smallest number

• Decompose into prime numbers

• Use the largest number

• List all multiples

Which prime number is typically used first in the practical method?

• 2

• 7

• 5

• 3

When using the practical method, what do you do after dividing by a prime number?

• Add the results

• Multiply the results

• List the results

• Subtract the results

In the example with numbers 9, 15, and 18, what is the LMC?

• 90

• 60

• 150

• 120

Why is it important to know prime numbers in the practical method?

• To subtract from the numbers

• To multiply the numbers

• To divide the numbers

• To add them to the list

What is the benefit of using the practical method over the conventional method?

• It uses fewer numbers

• It is more complex

• It is faster

• It is more accurate

What should you do after learning both methods for finding LMC?

• Practice both methods

• Forget the conventional method

• Use a calculator

• Only use the practical method