GCF and LCM

Front

What is the definition of GCF (Greatest Common Factor)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

What is the definition of LCM (Least Common Multiple)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of all of them.

Front

Which of the following is a multiple of 7? 14, 17, 22, 1

Back

14

Front

Which is not a factor of 12? 3, 6, 24, 4

Back

24

Front

What is the GCF of 18 and 24? Options: 3, 6, 8, 9

Back

6

Front

What is the GCF of 24 and 36? Options: 8, 6, 12, 4

Back

12

Front

If two numbers are 12 and 18, what is their LCM?

Back

The LCM of 12 and 18 is 36.

Front

What is the first step to find the GCF of two numbers?

Back

List the factors of each number and identify the largest common factor.

Front

What is the first step to find the LCM of two numbers?

Back

List the multiples of each number and identify the smallest common multiple.

Front

How can you find the GCF using prime factorization?

Back

Factor each number into primes, then multiply the lowest powers of common primes.