What is the Least Common Multiple of 47970 and 47990?

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 47970 and 47990 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47970 and 47990, than apply into the LCM equation.

GCF(47970,47990) = 10
LCM(47970,47990) = ( 47970 × 47990) / 10
LCM(47970,47990) = 2302080300 / 10
LCM(47970,47990) = 230208030

Least Common Multiple (LCM) of 47970 and 47990 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47970 and 47990. First we will calculate the prime factors of 47970 and 47990.

Prime Factorization of 47970

Prime Factorization of 47990

Now multiplying the highest exponent prime factors to calculate the LCM of 47970 and 47990.

LCM(47970,47990) = 2¹ × 3² × 5¹ × 13¹ × 41¹ × 4799¹
LCM(47970,47990) = 230208030