Prime Factorization Techniques and Concepts

This video tutorial introduces the concept of prime factorization and demonstrates two methods: the factor tree and the table method (teknik sengkedan). The instructor provides examples of factorizing numbers 45, 90, 120, and 48, explaining each step in detail. The video concludes with a recap and encourages students to practice using either method they find easier.

What are the two methods introduced for prime factorization?

• Factor tree and table method

• Table method and subtraction method

• Factor tree and division method

• Division method and subtraction method

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 6

• 7

• 4

• 9

What is the prime factorization of 45?

• 3 x 3 x 5

• 2 x 3 x 5

• 3 x 5 x 5

• 2 x 2 x 5

What is the first step in finding the prime factorization of 90?

• Divide by 7

• Divide by 2

• Divide by 5

• Divide by 3

What is the prime factorization of 90?

• 2 x 3 x 3 x 5

• 2 x 2 x 3 x 5

• 3 x 3 x 5

• 2 x 5 x 5

What is the first prime number used in the table method for 120?

• 5

• 7

• 3

• 2

What is the prime factorization of 120 using the table method?

• 2^3 x 3 x 5

• 2^2 x 3 x 5

• 3^2 x 2 x 5

• 2 x 3 x 5

What is the prime factorization of 48?

• 3^2 x 2

• 2^4 x 3

• 2^3 x 3

• 2^2 x 3

Which method is also known as the 'sengkedan' technique?

• Table method

• Subtraction method

• Division method

• Factor tree

Tags

CCSS.1.OA.B.3

What should be the final result in the table method?

• 3

• 2

• 0

• 1

Tags

CCSS.1.OA.B.3