LCM and GCF Review

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

Which number is a prime number? 4, 10, 7, 12

Back

7

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor, which is the largest number that divides two or more numbers without leaving a remainder.

Front

Find the GCF of 24 and 56.

Back

8

Front

What does LCM stand for?

Back

LCM stands for Least Common Multiple, which is the smallest multiple that is exactly divisible by two or more numbers.

Front

What is the LCM of 9 and 45?

Back

45

Front

What is the LCM of 2 and 15?

Back

30

Front

What are multiples of a number?

Back

Multiples of a number are the result of multiplying that number by an integer.

Front

Which list are multiples of 9? 9,16,24,36,45; 9,18,27,36,45,54,63; 1,3,9; 1,9,18,27,36

Back

9,18,27,36,45,54,63

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.