Fourth Grade OA.4 Multiples and Factors

Front

What is a multiple of a number?

Back

A multiple of a number is the product of that number and an integer. For example, multiples of 3 include 3, 6, 9, 12, etc.

Front

What is a factor of a number?

Back

A factor of a number is an integer that can be multiplied by another integer to produce that number. For example, factors of 24 include 1, 2, 3, 4, 6, 8, 12, and 24.

Front

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

Back

To determine if a number is a multiple of another, divide the first number by the second. If the result is an integer with no remainder, then the first number is a multiple of the second.

Front

What are prime numbers?

Back

Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves. Examples include 2, 3, 5, 7, 11.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

What is the greatest common factor (GCF)?

Back

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

Front

If a number is divisible by 9, what can you say about its digits?

Back

If a number is divisible by 9, the sum of its digits is also divisible by 9.

Front

What is the relationship between factors and multiples?

Back

Factors are numbers that divide another number evenly, while multiples are the result of multiplying a number by an integer. Every factor of a number is also a multiple of that number.

Front

How do you find all the factors of a number?

Back

To find all the factors of a number, list all integers that can divide that number without leaving a remainder.

Front

What is an example of a number that is a multiple of both 4 and 6?

Back

An example of a number that is a multiple of both 4 and 6 is 12.