On the Diophantine Equation 3x + p5y = z2

Authors

  • Kittipong LAIPAPORN School of Science, Walailak University, Nakhon Si Thammarat 80160
  • Saeree WANANIYAKUL School of Science, Walailak University, Nakhon Si Thammarat 80160
  • Prathomjit KHACHORNCHAROENKUL School of Science, Walailak University, Nakhon Si Thammarat 80160

DOI:

https://doi.org/10.48048/wjst.2019.6933

Keywords:

Exponential Diophantine equation, Catalan’s conjecture

Abstract

In this paper, we present new series of solutions of the Diophantine equation 3x + p5y = z2 where p is a prime number and x; y and z are nonnegative integers using elementary techniques. Moreover, the equation has no solution if p is equivalent to 5 or 7 modulo 24.

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References

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B Sroysang. On the Diophantine equation 3x + 5y = z2. Int. J. Pure Appl. Math. 2012; 81, 605-8.

T Ninrata. 2013, On the Diophantine equation 3x+2(5y) = z2, Bachelor’s project. Thaksin University, Thailand.

B Sroysang. More on the Diophantine equation 2x+3y = z2. Int. J. Pure Appl. Math. 2013; 84, 133-7.

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PT Bateman and ME Low. Prime numbers in arithmetic progressions with difference 24. Amer. Math. Monthly 1965; 72, 139-43.

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Published

2019-05-21

How to Cite

LAIPAPORN, K., WANANIYAKUL, S., & KHACHORNCHAROENKUL, P. (2019). On the Diophantine Equation 3x + p5y = z2. Walailak Journal of Science and Technology (WJST), 16(9), 647–653. https://doi.org/10.48048/wjst.2019.6933