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  1. What are primitive roots modulo n? - Mathematics Stack Exchange

    The important fact is that the only numbers $n$ that have primitive roots modulo $n$ are of the form $2^\varepsilon p^m$, where $\varepsilon$ is either $0$ or $1$, $p$ is an odd prime, and $m\ge0$

  2. Finding a primitive root of a prime number

    May 16, 2023 · How would you find a primitive root of a prime number such as 761? How do you pick the primitive roots to test? Randomly? Thanks

  3. number theory - Primitive Pythagorean triple divisible by 3 ...

    Prove that for any primitive Pythagorean triple (a, b, c), exactly one of a and b must be a multiple of 3, and c cannot be a multiple of 3. My attempt: Let a and b be relatively prime positive in...

  4. The primitive $n^ {th}$ roots of unity form basis over $\mathbb {Q ...

    Apr 10, 2024 · We fix the primitive roots of unity of order $7,11,13$, and denote them by $$ \tag {*} \zeta_7,\zeta_ {11},\zeta_ {13}\ . $$ Now we want to take each primitive root of prime order from …

  5. What is a primitive polynomial? - Mathematics Stack Exchange

    9 What is a primitive polynomial? I was looking into some random number generation algorithms and 'primitive polynomial' came up a sufficient number of times that I decided to look into it in more detail. …

  6. Primitive Central Idempotent - Mathematics Stack Exchange

    Sep 29, 2020 · The definition, given in the text, of primitive central idempotent element $e$ is if $e$ is central and has no proper decomposition as a sum of orthogonal central idempotent elements.

  7. Are all natural numbers (except 1 and 2) part of at least one primitive ...

    Nov 5, 2025 · Hence, all odd numbers are included in at least one primitive triplet. Except 1, because I'm not allowing 0 to be a term in a triplet. I can't think of any primitive triplets that have an even number …

  8. Primitive integer triangles - Mathematics Stack Exchange

    An integer sided triangle $ (a,b,c)$ is called primitive if $\gcd (a,b,c)=1$. How many primitive integer-sided triangles exist with a perimeter not exceeding $10 000 000$? I am trying to solve this on Euler …

  9. congruences - About primitive roots and square free numbers ...

    Checking per Gerry's suggestion, a quick spreadsheet for the 40 primitive roots mod 101 shows that twenty-six (26) of them are square-free and fourteen (14) of them are not. We are helped in this by …

  10. Primitive element theorem: an example - Mathematics Stack Exchange

    Feb 3, 2022 · Primitive element theorem: an example Ask Question Asked 4 years, 2 months ago Modified 4 years, 2 months ago