What is the Least Common Multiple of 90405 and 90411?

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 90405 and 90411 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90405 and 90411, than apply into the LCM equation.

GCF(90405,90411) = 3
LCM(90405,90411) = ( 90405 × 90411) / 3
LCM(90405,90411) = 8173606455 / 3
LCM(90405,90411) = 2724535485

Least Common Multiple (LCM) of 90405 and 90411 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90405 and 90411. First we will calculate the prime factors of 90405 and 90411.

Prime Factorization of 90405

Prime Factorization of 90411

Now multiplying the highest exponent prime factors to calculate the LCM of 90405 and 90411.

LCM(90405,90411) = 3² × 5¹ × 7² × 41¹ × 30137¹
LCM(90405,90411) = 2724535485