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Questions tagged [nt.number-theory]

Prime numbers, diophantine equations, diophantine approximations, analytic or algebraic number theory, arithmetic geometry, Galois theory, transcendental number theory, continued fractions

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Probable primes of a particular form

Concatenating two consecutive Mersenne numbers in base 10, I found these probable primes: $(2^{215}-1)*10^{65}+2^{214}-1$ $(2^{69660}-1)*10^{20970}+2^{69659}-1$ $(2^{92020}-1)*10^{27701}+2^{92019}-...