The least common multiple of two or more numbers is equal to the product of common factors and uncommon factors of all the numbers.

Factors of 8 = 2 x 2 x 2

Factors of 12 = 2 x 2 x 3

Factors of 16 = 2 x 2 x 2 x 2

Common factors of 8, 12 and 16 = 2 x 2 x 2

Uncommon factors of 8, 12 and 16 = 3 x 2

Least common multiple of 8, 12 and 16 = common factors x uncommon factors

Least common multiple of 8, 12 and 16 = 2 x 2 x 2 x 2 x 3

Least common multiple of 8, 12 and 16 = 48

Factors of 8 = 2 x 2 x 2

Factors of 12 = 2 x 2 x 3

Factors of 16 = 2 x 2 x 2 x 2

Common factors of 8, 12 and 16 = 2 x 2 x 2

Uncommon factors of 8, 12 and 16 = 3 x 2

Least common multiple of 8, 12 and 16 = common factors x uncommon factors

Least common multiple of 8, 12 and 16 = 2 x 2 x 2 x 2 x 3

Least common multiple of 8, 12 and 16 = 48