6th MIT Flashcard 9.19

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer. For example, multiples of 7 include 7, 14, 21, 28, etc.

Front

List the first five multiples of 7.

Back

7, 14, 21, 28, 35

Front

What is a least common multiple (LCM)?

Back

The least common multiple of two or more numbers is the smallest multiple that is evenly divisible by all of the numbers.

Front

How do you find the least common multiple of 15 and 25?

Back

The LCM of 15 and 25 is 75, found by listing multiples or using prime factorization.

Front

What is a greatest common factor (GCF)?

Back

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

Front

How do you find the greatest common factor of 20 and 25?

Back

The GCF of 20 and 25 is 5, found by identifying the largest factor common to both numbers.

Front

What are the first five multiples of 8?

Back

8, 16, 24, 32, 40

Front

What is the least common multiple of 3 and 6?

Back

The LCM of 3 and 6 is 6.

Front

What is the relationship between multiples and factors?

Back

A factor of a number is a number that divides it evenly, while a multiple is the result of multiplying that number by an integer.

Front

How can you determine if a number is a multiple of another?

Back

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