Using the Ladder Method to Find the Least Common Multiple

The video tutorial explains how to find the least common multiple (LCM) of numbers using the ladder method. The instructor begins by introducing the problem and selecting a shared factor among the numbers. The process involves dividing the numbers by shared factors until only ones remain. The final step is to multiply the numbers outside the ladder to find the LCM, which is 24 in this example.

What is the first step in using the ladder method to find the LCM of numbers?

• Multiply all numbers together

• Divide all numbers by the largest number

• Select a shared factor of at least two numbers

• Choose any random number

When dividing numbers in the ladder method, what should you do if a number is not divisible by the chosen factor?

• Multiply it by the factor

• Ignore the number

• Bring it down unchanged

• Add it to the next number

What is the shared factor chosen after dividing by 4 in the ladder method?

• 1

• 6

• 2

• 3

What is the final step in the ladder method to find the LCM?

• Divide the largest number by the smallest

• Multiply all numbers outside the ladder

• Subtract the smallest number from the largest

• Add all numbers inside the ladder

What is the LCM of the numbers 8, 12, and 24 using the ladder method?

• 24

• 36

• 12

• 48