What is the Least Common Multiple of 11840 and 11856?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 11840 and 11856 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11840 and 11856, than apply into the LCM equation.

GCF(11840,11856) = 16
LCM(11840,11856) = ( 11840 × 11856) / 16
LCM(11840,11856) = 140375040 / 16
LCM(11840,11856) = 8773440

Least Common Multiple (LCM) of 11840 and 11856 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11840 and 11856. First we will calculate the prime factors of 11840 and 11856.

Prime Factorization of 11840

Prime Factorization of 11856

Now multiplying the highest exponent prime factors to calculate the LCM of 11840 and 11856.

LCM(11840,11856) = 2⁶ × 5¹ × 37¹ × 3¹ × 13¹ × 19¹
LCM(11840,11856) = 8773440