What is the Least Common Multiple of 90478 and 90491?

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 90478 and 90491 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90478 and 90491, than apply into the LCM equation.

GCF(90478,90491) = 1
LCM(90478,90491) = ( 90478 × 90491) / 1
LCM(90478,90491) = 8187444698 / 1
LCM(90478,90491) = 8187444698

Least Common Multiple (LCM) of 90478 and 90491 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90478 and 90491. First we will calculate the prime factors of 90478 and 90491.

Prime Factorization of 90478

Prime Factorization of 90491

Now multiplying the highest exponent prime factors to calculate the LCM of 90478 and 90491.

LCM(90478,90491) = 2¹ × 19¹ × 2381¹ × 17¹ × 5323¹
LCM(90478,90491) = 8187444698