What is the Least Common Multiple of 18565 and 18580?

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 18565 and 18580 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18565 and 18580, than apply into the LCM equation.

GCF(18565,18580) = 5
LCM(18565,18580) = ( 18565 × 18580) / 5
LCM(18565,18580) = 344937700 / 5
LCM(18565,18580) = 68987540

Least Common Multiple (LCM) of 18565 and 18580 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18565 and 18580. First we will calculate the prime factors of 18565 and 18580.

Prime Factorization of 18565

Prime Factorization of 18580

Now multiplying the highest exponent prime factors to calculate the LCM of 18565 and 18580.

LCM(18565,18580) = 5¹ × 47¹ × 79¹ × 2² × 929¹
LCM(18565,18580) = 68987540