GCF LCM Prime Factorization

Front

What is the definition of a composite number?

Back

A composite number is a positive integer that has at least one positive divisor other than one or itself. In other words, it can be divided evenly by numbers other than 1 and itself.

Front

Identify a composite number from the following: 51, 29, 19, 59.

Back

51 is a composite number.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more integers is the smallest positive integer that is divisible by each of the integers.

Front

Find the LCM of 4 and 18.

Back

The LCM of 4 and 18 is 36.

Front

What is prime factorization?

Back

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

Front

Use a factor tree to find the prime factorization of 168.

Back

Front

How do you determine if a number is divisible by 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

Which of these numbers is divisible by 3: 3131, 71, 6043, 804?

Back

804 is divisible by 3.

Front

What is the definition of the greatest common factor (GCF)?

Back

The greatest common factor (GCF) of two or more integers is the largest positive integer that divides each of the integers without leaving a remainder.

Front

Find the GCF of 12 and 16.

Back

The GCF of 12 and 16 is 4.