What is the Least Common Multiple of 90618 and 90638?

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 90618 and 90638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90618 and 90638, than apply into the LCM equation.

GCF(90618,90638) = 2
LCM(90618,90638) = ( 90618 × 90638) / 2
LCM(90618,90638) = 8213434284 / 2
LCM(90618,90638) = 4106717142

Least Common Multiple (LCM) of 90618 and 90638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90618 and 90638. First we will calculate the prime factors of 90618 and 90638.

Prime Factorization of 90618

Prime Factorization of 90638

Now multiplying the highest exponent prime factors to calculate the LCM of 90618 and 90638.

LCM(90618,90638) = 2¹ × 3¹ × 11¹ × 1373¹ × 45319¹
LCM(90618,90638) = 4106717142