GCF/LCM

Front

What does GCF stand for in mathematics?

Back

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

Front

What does LCM stand for in mathematics?

Back

LCM stands for Least Common Multiple, which is the smallest positive integer that is a multiple of two or more integers.

Front

How do you find the GCF of two numbers?

Back

To find the GCF of two numbers, list the factors of each number, identify the common factors, and select the largest one.

Front

How do you find the LCM of two numbers?

Back

To find the LCM of two numbers, list the multiples of each number, identify the common multiples, and select the smallest one.

Front

What is the relationship between GCF and LCM?

Back

The relationship is given by the formula: GCF(a, b) × LCM(a, b) = a × b for any two integers a and b.

Front

Is 0 a factor of any number?

Back

No, 0 is not a factor of any number because division by zero is undefined.

Tags

CCSS.4.OA.B.4

Front

What is the GCF of 18 and 24?

Back

The GCF of 18 and 24 is 6.

Front

What is the LCM of 12 and 15?

Back

The LCM of 12 and 15 is 60.

Front

Can the GCF of two prime numbers be greater than 1?

Back

No, the GCF of two prime numbers is always 1, as they have no common factors other than 1.

Tags

CCSS.4.OA.B.4

Front

What is a common multiple?

Back

A common multiple is a number that is a multiple of two or more numbers.