Topic 3 Flashcard 1 Review (Dec 2024)

Front

What is the LCM of two numbers?

Back

The Least Common Multiple (LCM) of two numbers is the smallest multiple that is evenly divisible by both numbers.

Front

How do you find the LCM of 6 and 10?

Back

List the multiples of each number: Multiples of 6: 6, 12, 18, 24, 30, ...; Multiples of 10: 10, 20, 30, 40, ...; The LCM is 30.

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number.

Front

List all the factors of 24.

Back

1, 2, 3, 4, 6, 8, 12, 24.

Front

What is a factor tree?

Back

A factor tree is a diagram that shows the prime factorization of a number.

Front

What number is never allowed in a factor tree?

Back

1 is never allowed in a factor tree because it is not a prime number.

Front

What is prime factorization?

Back

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

Front

What is the prime factorization of 8?

Back

2 x 2 x 2 or 2^3.

Front

What is the GCF of two numbers?

Back

The Greatest Common Factor (GCF) is the largest number that divides two or more numbers without leaving a remainder.

Front

How do you find the GCF of 45 and 54?

Back

List the factors: Factors of 45: 1, 3, 5, 9, 15, 45; Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54. The GCF is 9.