What is the Least Common Multiple of 18970 and 18988?

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 18970 and 18988 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18970 and 18988, than apply into the LCM equation.

GCF(18970,18988) = 2
LCM(18970,18988) = ( 18970 × 18988) / 2
LCM(18970,18988) = 360202360 / 2
LCM(18970,18988) = 180101180

Least Common Multiple (LCM) of 18970 and 18988 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18970 and 18988. First we will calculate the prime factors of 18970 and 18988.

Prime Factorization of 18970

Prime Factorization of 18988

Now multiplying the highest exponent prime factors to calculate the LCM of 18970 and 18988.

LCM(18970,18988) = 2² × 5¹ × 7¹ × 271¹ × 47¹ × 101¹
LCM(18970,18988) = 180101180