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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 NumbersBasics of Divisibility Test

### Understanding Divisibility

This page provides basics required to understand what is a divisibility test.

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What is 5-:2?

• only 2
• quotient 2 and remainder 1
• quotient 2 and remainder 1
• both the above

The answer is "quotient 2 and remainder 1".

What is 6-:2?

• 3
• quotient 3 and remainder 0
• both the above
• both the above

The answer is "both the above".

Note the difference

•  Result of 5-:2 is, quotient 2 and remainder 1

•  Result of 6-:2 is, quotient 3 and remainder 0.

For a given divisor, the numbers can be grouped as

•  numbers for which remainder is 0 and

•  numbers for which remainder is not 0.

A number is called "divisible" by a divisor, if the remainder is 0.

Divisibility : A number (dividend) is divisible by a divisor number if the remainder is 0.

Divisibility Test : A procedure, to check if a given number is divisible by a divisor or not divisible by a divisor, is called divisibility test of the divisor.

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