What is the Least Common Multiple of 38605 and 38620?

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 38605 and 38620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38605 and 38620, than apply into the LCM equation.

GCF(38605,38620) = 5
LCM(38605,38620) = ( 38605 × 38620) / 5
LCM(38605,38620) = 1490925100 / 5
LCM(38605,38620) = 298185020

Least Common Multiple (LCM) of 38605 and 38620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38605 and 38620. First we will calculate the prime factors of 38605 and 38620.

Prime Factorization of 38605

Prime Factorization of 38620

Now multiplying the highest exponent prime factors to calculate the LCM of 38605 and 38620.

LCM(38605,38620) = 5¹ × 7¹ × 1103¹ × 2² × 1931¹
LCM(38605,38620) = 298185020