What is the Least Common Multiple of 18878 and 18890?

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 18878 and 18890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18878 and 18890, than apply into the LCM equation.

GCF(18878,18890) = 2
LCM(18878,18890) = ( 18878 × 18890) / 2
LCM(18878,18890) = 356605420 / 2
LCM(18878,18890) = 178302710

Least Common Multiple (LCM) of 18878 and 18890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18878 and 18890. First we will calculate the prime factors of 18878 and 18890.

Prime Factorization of 18878

Prime Factorization of 18890

Now multiplying the highest exponent prime factors to calculate the LCM of 18878 and 18890.

LCM(18878,18890) = 2¹ × 9439¹ × 5¹ × 1889¹
LCM(18878,18890) = 178302710