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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

### Common Factors

This page provides a brief overview of common factors 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"

Which of the following is a meaning for the word "common"?

• meet of find by chance
• one sharing and have a part of the other
• one sharing and have a part of the other

The answer is "one sharing and have a part of the other".

Common Factors : Factors common between two of more numbers are common factors of those numbers.

What are the common factors of 2 and 4?

• no common factor
• 2
• 2

The answer is "2"

What are the common factors of 8 and 9?

• no common factor other than 1
• no common factor other than 1
• 8 and 9

The answer is "no common factor other than 1"

What are the common factors of 8 and 12?

• no common factor other than 1
• 2, 4
• 2, 4

The answer is "2, 4".

The factors of 8 are 1, 2, 4, 8.

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

The common numbers between the two list is 2 and 4.

slide-show version coming soon