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Mathematics 23 Online
OpenStudy (anonymous):

6^n-1divisble by 5 true

ganeshie8 (ganeshie8):

look at : \(\large 6^n \)

ganeshie8 (ganeshie8):

when its divided by 5, it leaves a remainder of "1" right ?

ganeshie8 (ganeshie8):

so, \(6^n-1\) is always divisible by 5

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