What is the Least Common Multiple of 66721 and 66738?

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 66721 and 66738 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66721 and 66738, than apply into the LCM equation.

GCF(66721,66738) = 1
LCM(66721,66738) = ( 66721 × 66738) / 1
LCM(66721,66738) = 4452826098 / 1
LCM(66721,66738) = 4452826098

Least Common Multiple (LCM) of 66721 and 66738 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66721 and 66738. First we will calculate the prime factors of 66721 and 66738.

Prime Factorization of 66721

Prime Factorization of 66738

Now multiplying the highest exponent prime factors to calculate the LCM of 66721 and 66738.

LCM(66721,66738) = 66721¹ × 2¹ × 3¹ × 7² × 227¹
LCM(66721,66738) = 4452826098