What is the Least Common Multiple of 18886 and 18905?

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 18886 and 18905 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18886 and 18905, than apply into the LCM equation.

GCF(18886,18905) = 19
LCM(18886,18905) = ( 18886 × 18905) / 19
LCM(18886,18905) = 357039830 / 19
LCM(18886,18905) = 18791570

Least Common Multiple (LCM) of 18886 and 18905 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18886 and 18905. First we will calculate the prime factors of 18886 and 18905.

Prime Factorization of 18886

Prime Factorization of 18905

Now multiplying the highest exponent prime factors to calculate the LCM of 18886 and 18905.

LCM(18886,18905) = 2¹ × 7¹ × 19¹ × 71¹ × 5¹ × 199¹
LCM(18886,18905) = 18791570