Factors and Multiples Flashcard

Front

What are prime factors?

Back

Prime factors are the prime numbers that multiply together to give a certain number.

Front

What are the factors of a number?

Back

Factors of a number are the integers that can be multiplied together to produce that number.

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer.

Front

How do you find the least common multiple (LCM) of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.

Front

Is 81 divisible by 3?

Back

Yes, 81 is divisible by 3 because 81 ÷ 3 = 27.

Front

What is the result of multiplying 2/5 by 3/7?

Back

The result is 6/35.

Front

What are the factors of 40?

Back

The factors of 40 are 1, 2, 4, 5, 8, 10, 20, 40.

Front

What is a common factor?

Back

A common factor is a factor that is shared by two or more numbers.