What is the Least Common Multiple of 66378 and 66391?

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 66378 and 66391 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66378 and 66391, than apply into the LCM equation.

GCF(66378,66391) = 13
LCM(66378,66391) = ( 66378 × 66391) / 13
LCM(66378,66391) = 4406901798 / 13
LCM(66378,66391) = 338992446

Least Common Multiple (LCM) of 66378 and 66391 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66378 and 66391. First we will calculate the prime factors of 66378 and 66391.

Prime Factorization of 66378

Prime Factorization of 66391

Now multiplying the highest exponent prime factors to calculate the LCM of 66378 and 66391.

LCM(66378,66391) = 2¹ × 3¹ × 13¹ × 23¹ × 37¹ × 5107¹
LCM(66378,66391) = 338992446