List questions from modular-arithmetic

Published on 28 Mar 2026 - 12:02

874

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Dealing with negative values for $d$ in RSA Encryption.

Published on 13 Apr 2026 - 6:55

64

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p is prime and $p=4t+3$, I am wondering how to prove

Published on 16 Apr 2026 - 5:17

258

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Showing a system of equations has no integer solutions

Published on 11 Apr 2026 - 8:42

104

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Evaluate $P(x) \bmod (x^2-x-2)$

Published on 18 Apr 2026 - 15:28

60

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What is the correct notation and the correct solution?

Published on 15 Apr 2026 - 9:01

68

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Congruence equation with binomial coefficient

Published on 11 Apr 2026 - 9:57

166

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Value of $\pi$ modulo a prime

Published on 16 Apr 2026 - 17:37

480

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Prove that for every integer $n$, $n^3$mod$6$=$n$mod$6$

Published on 15 Apr 2026 - 19:56

212

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For any positive integer $k$, there exists a prime $p$ such that ${x \choose k}\equiv -1\pmod{p}$ has an integer solution.

Published on 15 Apr 2026 - 6:36

108

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Remainder when divided by $7$

Published on 12 Apr 2026 - 12:00

163

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Interesting problem on determinant (and pinch of number theory)

Published on 10 Apr 2026 - 0:30

197

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Showing that the Diophantine equation $m(m-1)(m-2)(m-3) = 24(n^2 + 9)$ has no solutions

Published on 14 Apr 2026 - 17:09

111

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If $ 1+ \frac{1}{2}+\frac{1}{3}+.....+\frac{1}{100}=\frac{A}{B}$ where $A$ and $B$ are coprime positive integers, then $5\nmid A$ and $5\nmid B$.

Published on 17 Apr 2026 - 1:01

2k

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Square root of 1 modulo N

Published on 14 Apr 2026 - 1:06

List Question

Is there a deeper reason for the classification of moduli in which a primitive root exists?

Dealing with negative values for $d$ in RSA Encryption.

p is prime and $p=4t+3$, I am wondering how to prove

Showing a system of equations has no integer solutions

Evaluate $P(x) \bmod (x^2-x-2)$

What is the correct notation and the correct solution?

Congruence equation with binomial coefficient

Value of $\pi$ modulo a prime

Prove that for every integer $n$, $n^3$mod$6$=$n$mod$6$

For any positive integer $k$, there exists a prime $p$ such that ${x \choose k}\equiv -1\pmod{p}$ has an integer solution.

Remainder when divided by $7$

Interesting problem on determinant (and pinch of number theory)

Showing that the Diophantine equation $m(m-1)(m-2)(m-3) = 24(n^2 + 9)$ has no solutions

If $ 1+ \frac{1}{2}+\frac{1}{3}+.....+\frac{1}{100}=\frac{A}{B}$ where $A$ and $B$ are coprime positive integers, then $5\nmid A$ and $5\nmid B$.

Square root of 1 modulo N

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