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Ask iit jee aieee pet cbse icse state board experts Discussion Response Post to: how is that the reminder of 5 power 99 divided by 13 is 8? and why not 5?
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pink_ele (1235)

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Olaaa!! Perrrfect answer. 203  [313 rates]

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5^99=5(5^98)=5(25^49)=5(26-1)^49
=5(26x an integer-1)
= multiple of 13 -5
that is nxt multiple is short of five or remain der is 8
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