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# Primes and Polynomials from I.S.I. Entrance

Prime numbers are related with polynomials. This problem from I.S.I Entrance is useful for Math Olympiad. Try video, sequential hints and practice problems.

## Try the problem

This problem of primes and polynomials is from B.Stat, B.Math Entrance.

Let x and n be positive integers such that $1 + x + x^2 + … + x^{n-1}$ is a prime number. Then show that n is a prime number.

## By Dr. Ashani Dasgupta

Ph.D. in Mathematics, University of Wisconsin, Milwaukee, United States.

Research Interest: Geometric Group Theory, Relatively Hyperbolic Groups.

Founder, Cheenta

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