What is the Least Common Multiple of 18972 and 18978?

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 18972 and 18978 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18972 and 18978, than apply into the LCM equation.

GCF(18972,18978) = 6
LCM(18972,18978) = ( 18972 × 18978) / 6
LCM(18972,18978) = 360050616 / 6
LCM(18972,18978) = 60008436

Least Common Multiple (LCM) of 18972 and 18978 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18972 and 18978. First we will calculate the prime factors of 18972 and 18978.

Prime Factorization of 18972

Prime Factorization of 18978

Now multiplying the highest exponent prime factors to calculate the LCM of 18972 and 18978.

LCM(18972,18978) = 2² × 3² × 17¹ × 31¹ × 3163¹
LCM(18972,18978) = 60008436