Understanding Factors of Numbers

The video tutorial from Rumah Gemar Matematika explains the concept of factors, demonstrating how to find factors of numbers like 32, 40, 16, 24, 25, and 30. It emphasizes the importance of identifying numbers that divide another number without leaving a remainder. The tutorial also covers finding common factors between two numbers, providing clear examples and explanations to enhance understanding.

What is a factor of a number?

• A number that is less than the given number

• A number that is a multiple of the given number

• A number that divides the given number completely

• A number that is greater than the given number

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CCSS.4.OA.B.4

Which of the following is a factor of 32?

• 9

• 5

• 8

• 3

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CCSS.4.NBT.B.6

What is the result of dividing 40 by 5?

• 9

• 8

• 7

• 6

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CCSS.4.OA.B.4

Which number is not a factor of 40?

• 8

• 6

• 4

• 10

What are the common factors of 16 and 24?

• 1, 2, 4, 8

• 1, 3, 5, 7

• 1, 2, 3, 4

• 2, 4, 6, 8

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CCSS.4.OA.B.4

Which of the following is a factor of 16?

• 8

• 5

• 9

• 3

What is the greatest common factor of 25 and 30?

• 1

• 5

• 10

• 15

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CCSS.4.OA.B.4

Which number is a factor of both 25 and 30?

• 5

• 3

• 2

• 7

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CCSS.4.OA.B.4

What is the factor of 25 that is also a factor of 30?

• 5

• 1

• 2

• 3

What is the purpose of understanding factors in mathematics?

• To solve complex equations

• To calculate percentages

• To find common multiples

• To simplify fractions and solve problems