Finding numbers from given LCM
50249
Pairs of numbers with a given LCM
157508
prove $lcm(a,gcd(b,c))=gcd(lcm(a,b),lcm(a,c))$
127388
Least common multiple for 3 or more numbers
9393
Order of elements is lcm-closed in abelian groups
43728
Proof via Group Theory : $\mathrm{lcm}(a,b) \cdot \gcd(a,b) = |ab|$
21288
For integers $a$ and $b$, $ab=\text{lcm}(a,b)\cdot\text{hcf}(a,b)$
41295
Divisibility, LCM and GCD for fractions (rationals)
136848
Find the number of nonzero elements
148906
Finding integers $m,n$ such that $(m-n)^2=4mn/(m+n-1)$
121280
Proving that $a \mathbb{Z} \cap b\mathbb{Z} = \operatorname{lcm}(a,b)\mathbb Z$
110444
Finding out the number of divisors
59462
Prove that $n!=\prod_{k=1}^n \operatorname{lcm}(1,2,...,\lfloor n/k \rfloor)$ for any $n \in \mathbb N$
87756
Order of a particular given permutation = LCM(order of all disjoint cycles) ?
48452
Proof that $\gcd$ divides $\operatorname{lcm}$
158579
If $r,s,t$ are prime numbers and $p,q$ positive integers s.t. $\text{lcm}(p,q)$ is $r^2s^4t^2$, then the number of ordered pairs $(p,q)$ is?
71392
Is $\operatorname{lcm}(a,\gcd(b,c))=\gcd(\operatorname{lcm}(a,b),\operatorname{lcm}(a,c))$
115264
Find when three numbers have the same remainder when divided by the same number