What is the Least Common Multiple of 756 and 764?

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 756 and 764 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 756 and 764, than apply into the LCM equation.

GCF(756,764) = 4
LCM(756,764) = ( 756 × 764) / 4
LCM(756,764) = 577584 / 4
LCM(756,764) = 144396

Least Common Multiple (LCM) of 756 and 764 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 756 and 764. First we will calculate the prime factors of 756 and 764.

Prime Factorization of 756

Prime Factorization of 764

Now multiplying the highest exponent prime factors to calculate the LCM of 756 and 764.

LCM(756,764) = 2² × 3³ × 7¹ × 191¹
LCM(756,764) = 144396