Remainder Theorem: how to find remainder within seconds, best tricks

Exam Target


Remainder Theorem


Rule (1)



if a number is form this type (a+1)n / a then the remainder is always 1



Rule (2)



if a number is form of a / (a+1)n then we have two condition

  1. if the power n is even then the remainder is always 1.



  1. If the power n is odd then the remainder is always a-1.




Rule (3)


if the number is this type an + (a+4)n / (a+2) and the n is an even power then the remainder is always 2.



Rule (4)



Lemma theorem:


As the lemma theorem remainder is always equal and less then the divider

d ) a ( q


------------------

r


now the lemma theorem d r < a


remainder is rqual to divider and less but not greater then a, here one thing is when remainder equal to d remainder is 0 because it divide by d fully.




Rule (5)


Who many possible remainder when we divide any number:


If we divide 12 by 4 then we have only 4 remainder 0,1,2,3 and 4 is also 0.


So the possible remainder is always equal to number and value is 0 to n-1.


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