Understanding LCM and GCD

This video tutorial by Kevin covers the concepts of KPK (Kelipatan Persekutuan Terkecil) and FPB (Faktor Persekutuan Terbesar). It begins with an introduction to multiples and factors, followed by detailed explanations and examples of prime factorization. The video provides step-by-step examples of finding factors and prime factorization for numbers like 12 and 72. It then explains the concept of FPB with examples, including a method using tables for larger numbers. Similarly, the video covers KPK, demonstrating how to find it using examples and tables. The tutorial concludes with a summary and a preview of upcoming content.

What does LCM stand for?

• Least Common Measure

• Least Common Multiple

• Largest Common Measure

• Largest Common Multiple

Tags

CCSS.4.OA.B.4

Which of the following is a prime factor of 12?

• 2

• 6

• 12

• 4

What is the GCD of 12 and 16?

• 2

• 6

• 4

• 8

How is the LCM of two numbers defined?

• The largest number that divides both

• The largest number that is a multiple of both

• The smallest number that is a multiple of both

• The smallest number that divides both

What is the LCM of 6 and 8?

• 12

• 18

• 24

• 30

Which method can be used to find the GCD of larger numbers?

• Division method

• Listing multiples

• Table method

• Prime factorization

What is the result of multiplying all the circled numbers in the table method for GCD?

• The sum of the numbers

• The LCM

• The difference of the numbers

• The GCD

Tags

CCSS.4.OA.B.4

In the table method, what do you do if a number divides only one of the two numbers?

• Subtract it

• Multiply it

• Ignore it

• Circle it

What is the LCM of 36 and 60 using the table method?

• 300

• 240

• 180

• 120

What is the GCD of 72 and 60 using the table method?

• 24

• 18

• 12

• 6