RETEST NC6NS4 Lesson 6 GCF/LCM/Prime Factorization

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.

Tags

CCSS.4.OA.B.4

Front

Identify the prime number from the following: 25, 17, 2, 31.

Back

17, 2, and 31 are prime numbers; 25 is not.

Tags

CCSS.4.OA.B.4

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 18 and 24?

Back

List the factors: Factors of 18 are 1, 2, 3, 6, 9, 18; Factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24. The GCF is 6.

Front

What is the Least Common Multiple (LCM)?

Back

The LCM is the smallest number that is a multiple of two or more numbers.

Front

How do you find the LCM of 6 and 8?

Back

List the multiples: Multiples of 6 are 6, 12, 18, 24, 30, ...; Multiples of 8 are 8, 16, 24, 32, ...; The LCM is 24.

Front

If Paula has 54 stickers and 36 pencils, what is the greatest number of bags she can make?

Back

The greatest number of bags is 18.

Front

What is the relationship between GCF and LCM?

Back

The product of the GCF and LCM of two numbers equals the product of the numbers.

Front

How many packs of hot dog buns and hamburger buns does Groot need for 48 people?

Back

Groot needs 6 hot dog bun packages and 4 hamburger bun packages.

Tags

CCSS.3.OA.A.3

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors.