What is the Least Common Multiple of 78457 and 78472?

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 78457 and 78472 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78457 and 78472, than apply into the LCM equation.

GCF(78457,78472) = 1
LCM(78457,78472) = ( 78457 × 78472) / 1
LCM(78457,78472) = 6156677704 / 1
LCM(78457,78472) = 6156677704

Least Common Multiple (LCM) of 78457 and 78472 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78457 and 78472. First we will calculate the prime factors of 78457 and 78472.

Prime Factorization of 78457

Prime Factorization of 78472

Now multiplying the highest exponent prime factors to calculate the LCM of 78457 and 78472.

LCM(78457,78472) = 67¹ × 1171¹ × 2³ × 17¹ × 577¹
LCM(78457,78472) = 6156677704