LCM Using Prime Factorization Quiz

What is the prime factorization of 24?

What is the prime factorization of 36?

What is the least common multiple of 8 and 12?

• 10

• 15

• 20

• 24

What is the least common multiple of 15 and 20?

• 75

• 45

• 60

• 30

How can prime factorization be used to find the LCM of two numbers?

• By dividing the prime factors of the two numbers

• By multiplying the highest power of each prime factor present in the factorization of the two numbers.

• By adding the prime factors of the two numbers

• By subtracting the prime factors of the two numbers

What is the prime factorization of 48?

What is the prime factorization of 60?

What is the least common multiple of 28 and 35?

• 98

• 140

• 63

• 112

Explain the process of finding LCM using prime factorization.

• Find the average of the numbers

• Subtract the numbers and divide by 2

• First, find the prime factorization of each number. Then, take the highest power of each prime factor that appears in the factorizations and multiply them together to get the LCM.

• Add the numbers together and divide by 2

What is the least common multiple of 16 and 24?

• 48

• 32

• 64

• 56