List questions from modular-arithmetic

Published on 16 Apr 2026 - 3:35

39

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For which modulos are all but one $n$th power congruent (or have few possible values)?

Published on 14 Apr 2026 - 15:35

73

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What is a possible mapping for two given sets?

Published on 11 Apr 2026 - 15:09

354

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Given mod3, mod5 and mod7 of a number `x`, how to find the number?

Published on 15 Apr 2026 - 4:48

335

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What is the remainder when $32^{32}$ is divided by 3

Published on 15 Apr 2026 - 4:07

67

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Probability of ⌊x/y + 1/2⌋ being odd with x and y from uniform(0,1)?

Published on 15 Apr 2026 - 22:22

35

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Proof Verification: Proving the divisibility of an integer polynomial

Published on 14 Apr 2026 - 13:34

62

Views

Modular Arithmetic with higher powers

Published on 09 Apr 2026 - 12:08

91

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How to solve an RSA decryption problem using subsitution?

Published on 10 Apr 2026 - 4:11

152

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A variation of the Chinese Remainder Theorem

Published on 12 Apr 2026 - 1:44

47

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Subgroups of index $p^2$ of $(\mathbb{Z}/p^2\mathbb{Z})^\times\ltimes \mathbb{Z}/p\mathbb{Z}$

Published on 12 Apr 2026 - 12:05

111

Views

Find positive integer solutions for $n^4(n+1)+1=7^m$

Published on 16 Apr 2026 - 7:33

51

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Find and prove a formula for $1\pmod{3}\cap 1\pmod{7}$.

Published on 16 Apr 2026 - 1:13

129

Views

Wrong solution of congruence system due to not cancelling gcd in homogeneous solution

Published on 14 Apr 2026 - 6:06

39

Views

Non integer solutions to mod

Published on 12 Apr 2026 - 1:25

List Question

The exact sequence splits iff $gcd(r,s)=1$

For which modulos are all but one $n$th power congruent (or have few possible values)?

What is a possible mapping for two given sets?

Given mod3, mod5 and mod7 of a number `x`, how to find the number?

What is the remainder when $32^{32}$ is divided by 3

Probability of ⌊x/y + 1/2⌋ being odd with x and y from uniform(0,1)?

Proof Verification: Proving the divisibility of an integer polynomial

Modular Arithmetic with higher powers

How to solve an RSA decryption problem using subsitution?

A variation of the Chinese Remainder Theorem

Subgroups of index $p^2$ of $(\mathbb{Z}/p^2\mathbb{Z})^\times\ltimes \mathbb{Z}/p\mathbb{Z}$

Find positive integer solutions for $n^4(n+1)+1=7^m$

Find and prove a formula for $1\pmod{3}\cap 1\pmod{7}$.

Wrong solution of congruence system due to not cancelling gcd in homogeneous solution

Non integer solutions to mod

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