What is the Least Common Multiple of 66855 and 66861?

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 66855 and 66861 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66855 and 66861, than apply into the LCM equation.

GCF(66855,66861) = 3
LCM(66855,66861) = ( 66855 × 66861) / 3
LCM(66855,66861) = 4469992155 / 3
LCM(66855,66861) = 1489997385

Least Common Multiple (LCM) of 66855 and 66861 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66855 and 66861. First we will calculate the prime factors of 66855 and 66861.

Prime Factorization of 66855

Prime Factorization of 66861

Now multiplying the highest exponent prime factors to calculate the LCM of 66855 and 66861.

LCM(66855,66861) = 3² × 5¹ × 4457¹ × 17¹ × 19¹ × 23¹
LCM(66855,66861) = 1489997385