Is LCM of rationals used in higher math?
66031
Rational Numbers - LCM and HCF
79160
Why do most formulas in physics have integer and rational exponents?
52483
Showing that $(m)\cap (n)=(\operatorname{lcm}(m,n))$ and $(m)+(n)=(\gcd(m,n))$ for any $m,n\in\mathbb{Z}$
63804
Proof that every repeating decimal is rational
40538
On determinants and common divisors
3848
Is there an $n^{\text{th}}$ root function in Mathematica?
130944
Greatest common divisor of polynomials over $\mathbb{Q}$
9393
Order of elements is lcm-closed in abelian groups
21288
For integers $a$ and $b$, $ab=\text{lcm}(a,b)\cdot\text{hcf}(a,b)$
60777
Prove $\, a_1 \Bbb Z \cap \dotsb \cap a_r \mathbb{Z} = {\rm lcm}(a_1, \ldots, a_r) \Bbb Z$
124230
What is $\operatorname{Hom}_\mathbb{Z}(\mathbb{Q}/\mathbb{Z},\mathbb{Q}/\mathbb{Z})$?
122487
Degree of Rational Function
83776
Is there a direct proof of this lcm identity?
59462
Prove that $n!=\prod_{k=1}^n \operatorname{lcm}(1,2,...,\lfloor n/k \rfloor)$ for any $n \in \mathbb N$
72747
Proving gcd($a,b$)lcm($a,b$) = $|ab|$
45213
Easiest and most complex proof of $\gcd (a,b) \times \operatorname{lcm} (a,b) =ab.$
56802
Why $\sqrt[3]{{2 + \sqrt 5 }} + \sqrt[3]{{2 - \sqrt 5 }}$ is a rational number?