What is the Least Common Multiple of 90021 and 90040?

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 90021 and 90040 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90021 and 90040, than apply into the LCM equation.

GCF(90021,90040) = 1
LCM(90021,90040) = ( 90021 × 90040) / 1
LCM(90021,90040) = 8105490840 / 1
LCM(90021,90040) = 8105490840

Least Common Multiple (LCM) of 90021 and 90040 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90021 and 90040. First we will calculate the prime factors of 90021 and 90040.

Prime Factorization of 90021

Prime Factorization of 90040

Now multiplying the highest exponent prime factors to calculate the LCM of 90021 and 90040.

LCM(90021,90040) = 3¹ × 37¹ × 811¹ × 2³ × 5¹ × 2251¹
LCM(90021,90040) = 8105490840