Factors and Multiples

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What is a multiple?

Back

A multiple is a number that can be divided by another number without a remainder.

Front

What is the least common multiple (LCM)?

Back

The least common multiple of two or more numbers is the smallest number that is a multiple of each of the numbers.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor of two or more numbers is the largest number that divides each of the numbers without a remainder.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and find the smallest common multiple.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and find the largest common factor.

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors.

Front

What is the prime factorization of 30?

Back

The prime factorization of 30 is 2 x 3 x 5.

Front

What is the prime factorization of 36?

Back

The prime factorization of 36 is 2^2 x 3^2.

Front

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

Back

The LCM of 12 and 18 is 36.