What is the Least Common Multiple of 78556 and 78572?

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 78556 and 78572 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78556 and 78572, than apply into the LCM equation.

GCF(78556,78572) = 4
LCM(78556,78572) = ( 78556 × 78572) / 4
LCM(78556,78572) = 6172302032 / 4
LCM(78556,78572) = 1543075508

Least Common Multiple (LCM) of 78556 and 78572 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78556 and 78572. First we will calculate the prime factors of 78556 and 78572.

Prime Factorization of 78556

Prime Factorization of 78572

Now multiplying the highest exponent prime factors to calculate the LCM of 78556 and 78572.

LCM(78556,78572) = 2² × 41¹ × 479¹ × 13¹ × 1511¹
LCM(78556,78572) = 1543075508