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Is (2^2019 − 1) a prime number?

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Is (2^2019 − 1) a prime number?
posted Jun 24, 2019 by anonymous

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1 Answer

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No

2^2019-1=(2^673)^3-1^3 ---> a^3-b^3=(a – b)*(a^2 + ab + b^2) this is not a prime

answer Jun 24, 2019 by Hanifa Mammadov



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