List questions from congruences

Published on 11 Dec 2013 - 7:08

142

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Let $f(n)= 10^{n}+3 \times 4^{n+2} +5$

Published on 12 Dec 2013 - 6:09

1.2k

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Solve $x^2\equiv 5 \pmod {35}$

Published on 31 Mar 2026 - 4:22

72

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Congruence system doesn't hold, though it should?

Published on 18 Dec 2013 - 16:44

229

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well defined mapping

Published on 18 Dec 2013 - 22:13

3.6k

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Congruences of the form $x^2-a \equiv 0$ (mod pq)

Published on 02 Jan 2014 - 2:35

205

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system of congruences proof

Published on 31 Mar 2026 - 3:58

386

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How to prove that $n^7\equiv n^3\mod40,\forall n\in\mathbb{Z}$

Published on 13 Jan 2014 - 11:54

2.2k

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Solve $12x\equiv9\pmod{15}$

Published on 13 Jan 2014 - 15:38

115

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Deriving Fermat's Theorem

Published on 15 Jan 2014 - 1:25

116

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Question about the totient function and congruence classes

Published on 30 Mar 2026 - 8:55

130

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A restatement of my question about the totient function and congruence classes

Published on 30 Mar 2026 - 10:40

1k

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Prove that $4^{2n+1}+3^{n+2} : \forall n\in\mathbb{N}$ is a multiple of $13$

Published on 16 Jan 2014 - 19:33

937

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Question about congruence classes and reduced residue systems

Published on 25 Mar 2026 - 10:53

101

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$x \equiv 5\: mod\: 7^{1000} , \: x \equiv 5\: mod \: 5^{200} $

Published on 22 Jan 2014 - 14:57

List Question

Reducing radical congruence to polynomial congruence

Let $f(n)= 10^{n}+3 \times 4^{n+2} +5$

Solve $x^2\equiv 5 \pmod {35}$

Congruence system doesn't hold, though it should?

well defined mapping

Congruences of the form $x^2-a \equiv 0$ (mod pq)

system of congruences proof

How to prove that $n^7\equiv n^3\mod40,\forall n\in\mathbb{Z}$

Solve $12x\equiv9\pmod{15}$

Deriving Fermat's Theorem

Question about the totient function and congruence classes

A restatement of my question about the totient function and congruence classes

Prove that $4^{2n+1}+3^{n+2} : \forall n\in\mathbb{N}$ is a multiple of $13$

Question about congruence classes and reduced residue systems

$x \equiv 5\: mod\: 7^{1000} , \: x \equiv 5\: mod \: 5^{200} $

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