What is the Least Common Multiple of 38970 and 38988?

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 38970 and 38988 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38970 and 38988, than apply into the LCM equation.

GCF(38970,38988) = 18
LCM(38970,38988) = ( 38970 × 38988) / 18
LCM(38970,38988) = 1519362360 / 18
LCM(38970,38988) = 84409020

Least Common Multiple (LCM) of 38970 and 38988 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38970 and 38988. First we will calculate the prime factors of 38970 and 38988.

Prime Factorization of 38970

Prime Factorization of 38988

Now multiplying the highest exponent prime factors to calculate the LCM of 38970 and 38988.

LCM(38970,38988) = 2² × 3³ × 5¹ × 433¹ × 19²
LCM(38970,38988) = 84409020