模运算

符号	LaTex
$s_k \equiv 0 \pmod{m}$	s_k \equiv 0 \pmod{m}
$a \bmod b$	a \bmod b
$\gcd(m, n), \operatorname{lcm}(m, n)$	\gcd(m, n), \operatorname{lcm}(m, n)
$\mid, \nmid, \shortmid, \nshortmid$	\mid, \nmid, \shortmid, \nshortmid
$\nmid$	\nmid
$\shortmid$	\shortmid
$\nshortmid$	\nshortmid