A prime gap is the difference between two successive prime numbers. The nth prime gap, denoted gₙ is the difference between the (n + 1)st and the nth prime numbers, i.e. gₙ=pₙ₊₁-pₙ. There isn't a verified solution to Andrica's conjecture yet. The conjecture itself deals with the difference between the square roots of consecutive prime numbers. While mathematicians have showed it true for a vast number of primes, a general solution remains elusive. The Andrica's conjecture is equivalent to say that gₙ<2 · √ pₙ+1 holds for all n. In this note, using the divergence of the infinite sum of the reciprocals of all prime numbers, we prove that the Andrica's conjecture is true.
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Frank Vega (2024) studied this question.
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