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Mathematics 17 Online
OpenStudy (anonymous):

451587 Insert two digits, one in the centre, and one at the end. You must make the number divisible by 132. Show method used

OpenStudy (dan815):

okay so

OpenStudy (dan815):

45 1a5 87b = 40 000 000 + 5 000 000 + 100 000 + a*10 000 + 5000+800+70+b

OpenStudy (dan815):

what u shud first see is the remainders you are left with from each place

OpenStudy (dan815):

then you can determine what a and b have to be

OpenStudy (dan815):

a quick way to find remainder would be to use Fermat's little theorem

OpenStudy (dan815):

|dw:1427424522509:dw|

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