Greatest common divisor for expression given.
68155
Explanation why $\frac{(x-1)!-(x-1)}x$ is always an integer for prime $x$
40538
On determinants and common divisors
121156
Prove that: $\gcd[a,b,c]=\frac{abc.\operatorname{lcm}(a,b,c)}{\operatorname{lcm}(a,b)\operatorname{lcm}(a,c)\operatorname{lcm}(b,c)}$
3694
Show $GCD(a_1, a_2, a_3, \ldots , a_n)$ is the least positive integer that can be expressed in the form $a_1x_1+a_2x_2+ \ldots +a_nx_n$
11600
$\gcd(a,\operatorname{lcm}(b,c))=\operatorname{lcm}(\gcd(a,b),\gcd(a,c))$
101940
If we know the GCD and LCM of two integers, can we determine the possible values of these two integers?
25891
GCD in polynomial rings with coefficients in a field extension
50249
Pairs of numbers with a given LCM
61825
Congruence class $[a]$ modulo $m$, $\gcd(x, m) = \gcd(a, m)$
74809
GCD to LCM of multiple numbers
125512
Doubt regarding divisibility of the expression: $1^{101}+2^{101} \cdot \cdot \cdot +2016^{101}$
135086
GCD of two numbers divided by their greatest common divisor is 1
41926
Why do we say "lowest common denominator" when we mean "greatest common divisor"?
74924
identity element of $(D_n ,\gcd)$
28749
Proving that any common multiple of two numbers is a multiple of their least common multiple
152074
How to find out the global minimum of the following expression
14693
$d = \gcd(c,m),\ ac≡bc\pmod{\! m}\Rightarrow a≡b\pmod {\!m/d}\ $ [Congruence Cancellation & Division Rule]