List questions from congruences

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Why is the number of conjugacy classes modulo 16 equal to the order for a finite group of odd order?

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Chinese remainder - Error in my solution

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Find All Solutions to System of Congruence

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Solvability of quadratic congruence

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What is $5^{11\times31}$ congruent to in modulo $11\times 13$?

Published on 30 Mar 2015 - 3:05

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Prove a ≡ b mod m ∧ a ≡ b mod n ⇒ a ≡ b mod lcm(m,n) (Stuck midway through solution)

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Number of elements of $\mathbb{Z}_p$ that satisfy a certain property

Published on 30 Mar 2015 - 16:15

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Factor the polynomial $x^4 + 2x − 4$ in $\mathbb{Z}_5[x]$.

Published on 01 Apr 2015 - 2:25

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Prove an upper bound for the multiplicative order of a congruence

Published on 02 Apr 2015 - 1:04

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Proof that $(2^m - 1, 2^n - 1) = 2^d - 1$ where $d = (m,n)$

Published on 02 Apr 2015 - 8:17

265

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Prove or disprove the congruence

Published on 04 Apr 2015 - 19:47

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Is this a valid example of a poset?

Published on 26 Mar 2026 - 9:39

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Simple question about modular arithmetic

Published on 07 Apr 2015 - 1:07

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Congruence of certain numbers mod a large prime

Published on 07 Apr 2015 - 1:51

List Question

number theory based on powers of 2

Why is the number of conjugacy classes modulo 16 equal to the order for a finite group of odd order?

Chinese remainder - Error in my solution

Find All Solutions to System of Congruence

Solvability of quadratic congruence

What is $5^{11\times31}$ congruent to in modulo $11\times 13$?

Prove a ≡ b mod m ∧ a ≡ b mod n ⇒ a ≡ b mod lcm(m,n) (Stuck midway through solution)

Number of elements of $\mathbb{Z}_p$ that satisfy a certain property

Factor the polynomial $x^4 + 2x − 4$ in $\mathbb{Z}_5[x]$.

Prove an upper bound for the multiplicative order of a congruence

Proof that $(2^m - 1, 2^n - 1) = 2^d - 1$ where $d = (m,n)$

Prove or disprove the congruence

Is this a valid example of a poset?

Simple question about modular arithmetic

Congruence of certain numbers mod a large prime

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