List questions from modular-arithmetic

Published on 23 Jan 2019 - 9:03

49

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Modulo computing without Euler's theorem

Published on 27 Mar 2026 - 21:43

32

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How to work out modular arithmetic quickly for cryptography

Published on 25 Mar 2026 - 14:00

282

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All interval sequences mod integers

Published on 23 Jan 2019 - 17:07

79

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Which primes divide $x^2-5$?

Published on 25 Mar 2026 - 13:32

113

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Writing of congruences with negatives

Published on 23 Jan 2019 - 20:36

129

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Dividing every term in congruence

Published on 24 Jan 2019 - 9:45

110

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Is the number $x^9+2x^7+3x^3+4x$ divisible for 5?

Published on 27 Mar 2026 - 14:51

120

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Is it possible to find a closed form using modular arithmetic?

Published on 26 Mar 2026 - 6:33

59

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For any $a \in \mathbb{N}$, $4^a \equiv (3a+1) \mod 9$

Published on 30 Mar 2026 - 13:37

184

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Prove (or disprove) that $3^{2n+3}+40n-27$ is divisible by $64$ for any $n$ integer

Published on 27 Mar 2026 - 14:51

48

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Inheritance of $+$ and $\cdot$ from $\mathbb{Z}$ in $\mathbb{Z}/m\mathbb{Z}$

Published on 26 Jan 2019 - 11:21

42

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Series of binary operations in $(\mathbb{N}, *)$

Published on 25 Mar 2026 - 3:07

72

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Question on proof regarding order of elements modulo $m$

Published on 26 Jan 2019 - 13:46

64

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Primes $p$ in which $3$ is a primitive root modulo $p$

Published on 25 Mar 2026 - 13:42

List Question

Modular Exponentiation with unknown base

Modulo computing without Euler's theorem

How to work out modular arithmetic quickly for cryptography

All interval sequences mod integers

Which primes divide $x^2-5$?

Writing of congruences with negatives

Dividing every term in congruence

Is the number $x^9+2x^7+3x^3+4x$ divisible for 5?

Is it possible to find a closed form using modular arithmetic?

For any $a \in \mathbb{N}$, $4^a \equiv (3a+1) \mod 9$

Prove (or disprove) that $3^{2n+3}+40n-27$ is divisible by $64$ for any $n$ integer

Inheritance of $+$ and $\cdot$ from $\mathbb{Z}$ in $\mathbb{Z}/m\mathbb{Z}$

Series of binary operations in $(\mathbb{N}, *)$

Question on proof regarding order of elements modulo $m$

Primes $p$ in which $3$ is a primitive root modulo $p$

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