What is the Least Common Multiple of 57390 and 57405?

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 57390 and 57405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 57390 and 57405, than apply into the LCM equation.

GCF(57390,57405) = 15
LCM(57390,57405) = ( 57390 × 57405) / 15
LCM(57390,57405) = 3294472950 / 15
LCM(57390,57405) = 219631530

Least Common Multiple (LCM) of 57390 and 57405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 57390 and 57405. First we will calculate the prime factors of 57390 and 57405.

Prime Factorization of 57390

Prime Factorization of 57405

Now multiplying the highest exponent prime factors to calculate the LCM of 57390 and 57405.

LCM(57390,57405) = 2¹ × 3¹ × 5¹ × 1913¹ × 43¹ × 89¹
LCM(57390,57405) = 219631530