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Thought-Process to Discover Knowledge

Welcome to nubtrek.

Books and other education websites provide "matter-of-fact" knowledge. Instead, nubtrek provides a thought-process to discover knowledge.

In each of the topic, the outline of the thought-process, for that topic, is provided for learners and educators.

Read in the blogs more about the unique learning experience at nubtrek.
mathsDivisibility in Whole NumbersHighest Common Factor

### Highest Common Factor

This page provides a brief overview of highest common factor of two or more numbers.

click on the content to continue..

What are the factors of 12 and 18?

• 1,2,3,4,6,12 and 1,2,3,6,18
• 1,2,3,4,6,12 and 1,2,3,6,18
• Factors for two numbers are not defined.

The answer is "1,2,3,4,6,12 and 1,2,3,6,18"

Factors of 12 are 1,2,3,4,6,12 and factors of 18 are 1,2,3,6,18. What are the common factors between these two?

• 1,2,3,6
• 1,2,3,6
• 1,2,3,4,6,12,18
• 4,12

The answer is "1,2,3,6"

Factors of 12 are 1,2,3,4,6,12 and factors of 18 are 1,2,3,6,18. The common factors of these two numbers are 1,2,3,6. What is the highest common factor for these two numbers?

• 1,2,3,6
• 6
• 6
• 1

The answer is "6"

Highest Common Factor : The highest factor in the common factors of two or more numbers is the highest common factor of those numbers.

What is the HCF of 2 and 4?

• 2
• 2
• 4

The answer is "2"

What is the HCF of 8 and 9?

• 8
• 9
• 1
• 1

The answer is "1".

What is the HCF of 24 and 30?

• 2
• 3
• 6
• 6

The answer is "6".

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24.

The factors of 30 are 1, 2, 3, 5, 6, 10, 15.

The common factors are 1, 2, 3, 6.

The highest value in common factors is 6.

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