What is the Least Common Multiple of 38540 and 38555?

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 38540 and 38555 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38540 and 38555, than apply into the LCM equation.

GCF(38540,38555) = 5
LCM(38540,38555) = ( 38540 × 38555) / 5
LCM(38540,38555) = 1485909700 / 5
LCM(38540,38555) = 297181940

Least Common Multiple (LCM) of 38540 and 38555 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38540 and 38555. First we will calculate the prime factors of 38540 and 38555.

Prime Factorization of 38540

Prime Factorization of 38555

Now multiplying the highest exponent prime factors to calculate the LCM of 38540 and 38555.

LCM(38540,38555) = 2² × 5¹ × 41¹ × 47¹ × 11¹ × 701¹
LCM(38540,38555) = 297181940