Prime Factorization and GCF/LCM

Front

What is prime factorization?

Back

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

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that has more than two positive divisors.

Front

What is the greatest common factor (GCF)?

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 least common multiple (LCM)?

Back

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

Front

Find the GCF of 18 and 27.

Back

The GCF of 18 and 27 is 9.

Front

Find the prime factorization of 12.

Back

The prime factorization of 12 is 2² x 3.

Front

Find the prime factorization of 105.

Back

The prime factorization of 105 is 7 x 5 x 3.

Front

Which of the following is NOT prime: 29, 23, 17, 39?

Back

39 is NOT a prime number.

Front

Is 63 prime or composite?

Back

63 is a composite number.