What is the Least Common Multiple of 89605 and 89620?

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 89605 and 89620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89605 and 89620, than apply into the LCM equation.

GCF(89605,89620) = 5
LCM(89605,89620) = ( 89605 × 89620) / 5
LCM(89605,89620) = 8030400100 / 5
LCM(89605,89620) = 1606080020

Least Common Multiple (LCM) of 89605 and 89620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89605 and 89620. First we will calculate the prime factors of 89605 and 89620.

Prime Factorization of 89605

Prime Factorization of 89620

Now multiplying the highest exponent prime factors to calculate the LCM of 89605 and 89620.

LCM(89605,89620) = 5¹ × 17921¹ × 2² × 4481¹
LCM(89605,89620) = 1606080020