What is the Least Common Multiple of 12456 and 12460?

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 12456 and 12460 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12456 and 12460, than apply into the LCM equation.

GCF(12456,12460) = 4
LCM(12456,12460) = ( 12456 × 12460) / 4
LCM(12456,12460) = 155201760 / 4
LCM(12456,12460) = 38800440

Least Common Multiple (LCM) of 12456 and 12460 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12456 and 12460. First we will calculate the prime factors of 12456 and 12460.

Prime Factorization of 12456

Prime Factorization of 12460

Now multiplying the highest exponent prime factors to calculate the LCM of 12456 and 12460.

LCM(12456,12460) = 2³ × 3² × 173¹ × 5¹ × 7¹ × 89¹
LCM(12456,12460) = 38800440