List questions from coprime

Published on 26 Aug 2020 - 20:02

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If $n=\frac{a}{b}$ , with $n, a$ and $b$ integers $( b ≠ 0)$, and with $a$ and $b$ coprimes, does $b=1$?

Published on 29 Aug 2020 - 16:56

56

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If $a,c$ are coprime integers, what is the probability that $a+d$ and $c$ are coprime?

Published on 13 Sep 2020 - 10:53

51

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On the coprimeness probability

Published on 14 Sep 2020 - 12:49

56

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Big O notation for OEIS A015617

Published on 20 Oct 2020 - 16:53

143

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How to prove that a set of numbers is a complete set of units modulo p, where p is prime?

Published on 23 Oct 2020 - 18:25

1k

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Is Euler's totient function surjective?

Published on 26 Oct 2020 - 20:59

64

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Any way of computing the number of co-prime numbers to $n$

Published on 31 Oct 2020 - 11:08

255

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Prove that certain $\alpha_m:C_n\rightarrow C_n$ is automorphism if $\gcd(m,n)=1$

Published on 01 Nov 2020 - 11:42

45

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If $d=(m, n)$, with $m, n>0$, do $a, b$ integers exist such that $1=(\frac{m}{a}, \frac{n}{b})$ and $d=ab$?

Published on 11 Nov 2020 - 4:53

62

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Why are these numbers coprime?

Published on 17 Nov 2020 - 13:26

80

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Are $A,B,C$ coprime integers if $B=C$?

Published on 16 Dec 2020 - 8:28

2.2k

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Is any number coprime to itself?

Published on 21 Dec 2020 - 13:29

54

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Can I do this in Modulo arithmetic?

Published on 09 Jan 2021 - 18:32

411

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Finding the number of pairs (a,b) such that gcd(a,b,n)=1

Published on 13 Jan 2021 - 2:56

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Find all relatively prime successive binomial coefficients

If $n=\frac{a}{b}$ , with $n, a$ and $b$ integers $( b ≠ 0)$, and with $a$ and $b$ coprimes, does $b=1$?

If $a,c$ are coprime integers, what is the probability that $a+d$ and $c$ are coprime?

On the coprimeness probability

Big O notation for OEIS A015617

How to prove that a set of numbers is a complete set of units modulo p, where p is prime?

Is Euler's totient function surjective?

Any way of computing the number of co-prime numbers to $n$

Prove that certain $\alpha_m:C_n\rightarrow C_n$ is automorphism if $\gcd(m,n)=1$

If $d=(m, n)$, with $m, n>0$, do $a, b$ integers exist such that $1=(\frac{m}{a}, \frac{n}{b})$ and $d=ab$?

Why are these numbers coprime?

Are $A,B,C$ coprime integers if $B=C$?

Is any number coprime to itself?

Can I do this in Modulo arithmetic?

Finding the number of pairs (a,b) such that gcd(a,b,n)=1

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