pXp XpXpXp XpXpXp

¯

XpXpXp lcm ( a , b ) = ( a b ) gcd ( a , b ) XpXpXp

XpXpXp 1 2 3 three 4 four 5 XpXpXp

XpXpXp 1 2 3 three 4 four 5 XpXpXp