What is the Least Common Multiple of 744 and 748?

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 744 and 748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 744 and 748, than apply into the LCM equation.

GCF(744,748) = 4
LCM(744,748) = ( 744 × 748) / 4
LCM(744,748) = 556512 / 4
LCM(744,748) = 139128

Least Common Multiple (LCM) of 744 and 748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 744 and 748. First we will calculate the prime factors of 744 and 748.

Prime Factorization of 744

Prime Factorization of 748

Now multiplying the highest exponent prime factors to calculate the LCM of 744 and 748.

LCM(744,748) = 2³ × 3¹ × 31¹ × 11¹ × 17¹
LCM(744,748) = 139128