How to find one unknown number while LCM and GCD is given?
49294
prove that $\operatorname{lcm}(n,m) = nm/\gcd(n,m)$
45498
Building a hard to factor number without knowing its factorization
36611
Algorithms for solving the discrete logarithm $a^x \equiv b\pmod{n}$ when $\gcd(a,n) \neq 1$
60432
What is the best way to get all the divisors of a number?
110444
Finding out the number of divisors
83776
Is there a direct proof of this lcm identity?
101940
If we know the GCD and LCM of two integers, can we determine the possible values of these two integers?
111555
Find $a,b \in \mathbb{N}$ with $\mathrm{lcm}(a,b)=12\gcd(a,b)\,$ and $\,a\bmod b = 5$
21288
For integers $a$ and $b$, $ab=\text{lcm}(a,b)\cdot\text{hcf}(a,b)$
27250
Greatest common divisor of two relatively primes
52483
Showing that $(m)\cap (n)=(\operatorname{lcm}(m,n))$ and $(m)+(n)=(\gcd(m,n))$ for any $m,n\in\mathbb{Z}$
95819
LCM. What am I missing?
7090
Show that $\gcd(a,bc)=1$ if and only if $\gcd(a,b)=1$ and $\gcd(a,c)=1$
14783
A Number Theory problem (GCD)
71392
Is $\operatorname{lcm}(a,\gcd(b,c))=\gcd(\operatorname{lcm}(a,b),\operatorname{lcm}(a,c))$
46555
How to calculate GCD of Gaussian integers?
8160
What is $\gcd(0,a)$, where $a$ is a positive integer?