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If k^4 is divisible by 32, which of the following could be the remainder when k is divided by 32?
(1). 2 (2). 4 (3). 6
let k= 32m + r ( r is the remainder)
k^4= ( 32m+r)^4 ...we know if spreading this expresion we'll get only one term which is not a multiple of 32m ...that is r^4
since k^4 is divisible by 32 ----> r^4 must be divisible by 32
try those choices provided...only 4 satisfies.
4 is correct.