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1 answer
362 views

Primality test for numbers of the form $4k+3$

Can you prove or disprove the following claim: Let $n$ be a natural number of the form $4k+3$ , and let $c$ be the smallest odd prime such that $\binom{c}{n}=-1$ , where $\binom{}{}$ denotes a Jacobi ...
Pedja's user avatar
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10 votes
0 answers
633 views

Primality testing using Chebyshev polynomials

Can you provide a proof or a counterexample for the claim given below? Inspired by an alternative definition of the Frobenius primality test which is given in this paper I have formulated the ...
Pedja's user avatar
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4 votes
1 answer
182 views

Primality test for specific class of $N=8k \cdot 3^n-1$

This question is related to my previous question. Can you prove or disprove the following claim: Let $P_m(x)=2^{-m}\cdot \left(\left(x-\sqrt{x^2-4}\right)^{m}+\left(x+\sqrt{x^2-4}\right)^{m}\right)$ ...
Pedja's user avatar
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2 votes
1 answer
365 views

Primality test for specific class of $N=8kp^n-1$

My following question is related to my question here Can you provide a proof or a counterexample for the following claim : Let $P_m(x)=2^{-m}\cdot \left(\left(x-\sqrt{x^2-4}\right)^{m}+\left(x+\...
Pedja's user avatar
  • 2,661
5 votes
1 answer
332 views

Conjectured primality test for specific class of $N=k \cdot 6^n+1$

Can you provide a proof or a counterexample for the claim given below? Inspired by Theorem 5 in this paper I have formulated the following claim: Let $N=k \cdot 6^n+1$ , $k<6^n$ and $\operatorname{...
Pedja's user avatar
  • 2,661
3 votes
0 answers
265 views

Conjectured primality test for numbers of the form $N=4 \cdot 3^n-1$

This is a repost of this question. Can you provide proof or counterexample for the claim given below? Inspired by Lucas-Lehmer primality test I have formulated the following claim: Let $P_m(x)=2^{-m}\...
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  • 2,661
2 votes
1 answer
839 views

Primality test for generalized Fermat numbers

This question is successor of Primality test for specific class of generalized Fermat numbers . Can you provide a proof or a counterexample for the claim given below? Inspired by Lucas–Lehmer–Riesel ...
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3 votes
1 answer
383 views

Primality test for specific class of $N=k \cdot b^n-1$

This question is successor of Compositeness test for specific class of $N=k \cdot b^n-1$ . Can you provide a proof or a counterexample to the following claim : Let $P_m(x)=2^{-m}\cdot \left(\left(...
Pedja's user avatar
  • 2,661
11 votes
2 answers
911 views

Primality test for specific class of Proth numbers

Can you provide a proof or a counterexample for the following claim : Let $P_m(x)=2^{-m}\cdot \left(\left(x-\sqrt{x^2-4}\right)^{m}+\left(x+\sqrt{x^2-4}\right)^{m}\right)$ Let $N=k\cdot 2^n+1$ such ...
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  • 2,661
2 votes
0 answers
306 views

Conjectured initial values of Inkeri's primality test for Fermat numbers

This is a repost of this question . Can you provide a proof or a counterexample to the claim given below ? First , we shall give a definition of the Inkeri's primality test for Fermat numbers : ...
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66 votes
3 answers
6k views

Chebyshev polynomials of the first kind and primality testing

Can you provide a proof or a counterexample for the claim given below ? Inspired by Agrawal's conjecture in this paper and by Theorem 4 in this paper I have formulated the following claim : Let $...
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  • 2,661
5 votes
0 answers
586 views

Primality test for specific class of generalized Fermat numbers

Can you provide a proof or a counterexample for the following claim : Let $P_m(x)=2^{-m}\cdot((x-\sqrt{x^2-4})^m+(x+\sqrt{x^2-4})^m)$ . Let $F_{p,n}= (2p)^{2^n}+1 $ where $p$ is a prime number ...
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