On the Equation x²₁ + x²₂ + x²₃ + x²₄ = N with Variables such that x₁x₂x₃x₄ + 1 is an Almost-Prime

Published Online: Mar 11, 2015

Page range: 1 - 26

Received: Jun 22, 2014

DOI: https://doi.org/10.2478/tmmp-2014-0015

Keywords

Lagrange’s equation, almost-primes

© 2015

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