Question

Find the lcm of 320 and 432 using division method

Answer 1

the LCM of 320 and 432 is 8640

Answer 2

$2 |320| \\ 2 |160 |\\ 2 |80| \\ 2 |40| \\ 2 |20| \\ 2 |10| \\ 5 |5| \\ 1 |1|$
so 320 =2×2×2×2×2×2×2×5
$2 |432| \\ 2 |216| \\ 2 |108| \\ 2 |54| \\ 3 |27| \\ 3 |9| \\ 3 |3| \\ 1$
so 432 =2×2×2×2×3×3×3
So Lcm =2×2×2×2×2×2×2×3×3×3×5
=17280