What is the Least Common Multiple of 61854 and 61858?

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 61854 and 61858 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61854 and 61858, than apply into the LCM equation.

GCF(61854,61858) = 2
LCM(61854,61858) = ( 61854 × 61858) / 2
LCM(61854,61858) = 3826164732 / 2
LCM(61854,61858) = 1913082366

Least Common Multiple (LCM) of 61854 and 61858 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61854 and 61858. First we will calculate the prime factors of 61854 and 61858.

Prime Factorization of 61854

Prime Factorization of 61858

Now multiplying the highest exponent prime factors to calculate the LCM of 61854 and 61858.

LCM(61854,61858) = 2¹ × 3¹ × 13² × 61¹ × 157¹ × 197¹
LCM(61854,61858) = 1913082366