- #1
beetle2
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Homework Statement
Show that for every integer n the number n33 - n is divisible by 15
Homework Equations
The Attempt at a Solution
Not sure what to do.
I was thinking it might have something to do with both numbers are divisable by 3
ie the power = 3 x 11 and the divisor = 3 x 5 as with all intgers they are products of prime numbers.
(n3)11-n | (2x3)+32
any help greatly appreciated