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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.continue

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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