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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

In this page, a simple overview of the divisibility test for `12` is provided. The procedure uses simplification by factors.



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If a number is given as `3xx4xx2351`, will it be divisible by `12`?

  • cannot decide without finding the result of the given multiplication
  • it is divisible by `12` as it has `3` and `4` as factors
  • it is divisible by `12` as it has `3` and `4` as factors

The answer is "it is divisible by `12` as it has `3` and `4` as factors"

Test for Divisibility by `12` : If a number is divisible by `3` and `4`, then the number is divisible by `12`.

Is `2008` divisible by `12`?

  • Yes
  • No
  • No

The answer is "No". The number is divisible by `4` and not divisible by `3`. So, it is concluded that the number is not divisible by `12`.

Is `720` divisible by `12`?

  • Yes
  • Yes
  • No

The answer is "Yes". The number is divisible by `4` and `3`, So, it is concluded that the number is divisible by `12`.

                            
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