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Let an = (111 ....1)/time, then (A) a912 is not prime (B) a951 is not prime

+3 votes

asked Sep 21, 2018 in JEE by kratos

Let an = (111 ....1)/time, then

(A) a912 is not prime

(B) a951 is not prime

(C) a480 is not prime

(D) a91 is not prime

class-11
jee
class-9
algebraic identities
binomial theorem
class-12
server side scripting using php

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1 Answer

+4 votes

answered Oct 3, 2020 by kratos

Best answer

Correct option (A) (B) (C) (D)

Explanation:

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