What is the Least Common Multiple of 19380 and 19399?

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 19380 and 19399 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19380 and 19399, than apply into the LCM equation.

GCF(19380,19399) = 19
LCM(19380,19399) = ( 19380 × 19399) / 19
LCM(19380,19399) = 375952620 / 19
LCM(19380,19399) = 19786980

Least Common Multiple (LCM) of 19380 and 19399 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19380 and 19399. First we will calculate the prime factors of 19380 and 19399.

Prime Factorization of 19380

Prime Factorization of 19399

Now multiplying the highest exponent prime factors to calculate the LCM of 19380 and 19399.

LCM(19380,19399) = 2² × 3¹ × 5¹ × 17¹ × 19¹ × 1021¹
LCM(19380,19399) = 19786980