# fred

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bio website location age 22 member for 1 year, 11 months seen Jun 20 '13 at 18:41 profile views 25

I'm a dev bi***

# 51 Actions

 Jun19 comment Number of solutions for $\sum_{i=1}^{4} x_i < 22$ with condition. Thanks, just got confirmation that there is a mistake on the solution sheet. Jun19 comment Number of solutions for $\sum_{i=1}^{4} x_i < 22$ with condition. Ok. I guess the wrong answer is on the teacher's solution sheet. Thanks :) Jun19 accepted Number of solutions for $\sum_{i=1}^{4} x_i < 22$ with condition. Jun19 asked Number of solutions for $\sum_{i=1}^{4} x_i < 22$ with condition. Nov29 accepted Why is $x^7 = x$ true for every $x$ in $x ∈ Z/14Z$? Nov29 comment Modular Arithmetic Equations Got it ! Thanks :) Nov29 accepted Modular Arithmetic Equations Nov29 comment Why is $x^7 = x$ true for every $x$ in $x ∈ Z/14Z$? Why does it work for 2 and 7 too ? Nov29 comment Why is $x^7 = x$ true for every $x$ in $x ∈ Z/14Z$? I know. But still don't see how this applies. Nov29 comment Why is $x^7 = x$ true for every $x$ in $x ∈ Z/14Z$? I'm not sure where this is heading. Nov29 comment Modular Arithmetic Equations CRT is probably the way to go but not sure how to apply it here. Nov29 asked Why is $x^7 = x$ true for every $x$ in $x ∈ Z/14Z$? Nov29 asked Modular Arithmetic Equations Nov15 comment How many numbers exists that are smaller than $p$ and prime with $p$? Thanks, in short $3947$ is the answer I was looking for. Euler's totient function clarified my confusion. Nov15 accepted How many numbers exists that are smaller than $p$ and prime with $p$? Nov15 comment How many numbers exists that are smaller than $p$ and prime with $p$? @JonasKibelbek : I edited the question to be clearer. You're right that it's a different question. Nov15 revised How many numbers exists that are smaller than $p$ and prime with $p$? edited title Nov15 asked How many numbers exists that are smaller than $p$ and prime with $p$? Nov15 comment How to compute large modulos with pen and paper? Yeah, any power of 3 greater than will make the remainder 0. Nov15 accepted How to compute large modulos with pen and paper?