What is the Least Common Multiple of 67728 and 67748?

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 67728 and 67748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67728 and 67748, than apply into the LCM equation.

GCF(67728,67748) = 4
LCM(67728,67748) = ( 67728 × 67748) / 4
LCM(67728,67748) = 4588436544 / 4
LCM(67728,67748) = 1147109136

Least Common Multiple (LCM) of 67728 and 67748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67728 and 67748. First we will calculate the prime factors of 67728 and 67748.

Prime Factorization of 67728

Prime Factorization of 67748

Now multiplying the highest exponent prime factors to calculate the LCM of 67728 and 67748.

LCM(67728,67748) = 2⁴ × 3¹ × 17¹ × 83¹ × 16937¹
LCM(67728,67748) = 1147109136