List questions from gcd-and-lcm | MathQa

N bits, flip exactly M bits at a time, what is minimum number of operations to get all 0's to all 1's?

Published on 31 Dec 2024 - 16:07

Adding fractions with variables and using common denominator. Merging and shortening $\frac{1}{2a+8} + \frac{4}{a^2-16} + \frac{4}{a-4}$

Published on 12 Jan 2025 - 19:23

How to find the g.c.d when I have another g.c.d

Published on 12 Jan 2025 - 23:53

Finding $\sum_{i = 1}^{n} \frac{n} { \gcd(i, n)}$

Published on 02 Jan 2025 - 11:06

Let $n$ be a positive integer. Prove that if $18|n^3$, then $18|n^2$.

Published on 03 Jan 2025 - 3:11

If $n$ is an odd integer, and $n$ divides $x^2-1$ then $n = \gcd(n, x-1)\cdot\gcd(n, x+1)$

Published on 01 Jan 2025 - 20:25

Prove that if $c|gcd(a,b)$, then $c|a$ and $c|b$.

Published on 12 Jan 2025 - 23:54

If $3|n^3$, does $3|n$?

Published on 12 Jan 2025 - 23:43

Given that $18|n^3$, can we conclude $18|n^2$?

Published on 12 Jan 2025 - 23:58

Show that if $gcd(a,b)|c$ then $ax+by=c$ has infinitely many solutions.

Published on 12 Jan 2025 - 23:51