Understanding Least Common Multiple (LCM)

What is the main topic discussed in the video?

• Finding the greatest common divisor

• Understanding prime numbers

• Calculating the least common multiple

• Solving quadratic equations

Which method is used first to find the LCM of 8 and 12?

• Division method

• Subtraction method

• Prime factorization

• Listing method

What is the LCM of 8 and 12 using the listing method?

• 16

• 32

• 24

• 48

When using the listing method, what is the first step?

• Divide the numbers by their prime factors

• List all multiples of the numbers

• Subtract the smaller number from the larger

• Multiply the numbers together

What is the LCM of 6, 12, and 15 using the listing method?

• 30

• 45

• 60

• 75

Which method is introduced after the listing method?

• Division method

• Multiplication method

• Prime factorization method

• Subtraction method

What are the prime factors of 6?

• 2 and 3

• 3 and 5

• 2 and 5

• 3 and 4

How is the LCM determined using prime factorization?

• By adding the prime factors

• By multiplying the highest power of each prime factor

• By subtracting the smallest prime factor

• By dividing the largest prime factor

What is the LCM of 6, 12, and 15 using prime factorization?

• 45

• 50

• 75

• 60

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