What is the Least Common Multiple of 42578 and 42584?

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 42578 and 42584 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42578 and 42584, than apply into the LCM equation.

GCF(42578,42584) = 2
LCM(42578,42584) = ( 42578 × 42584) / 2
LCM(42578,42584) = 1813141552 / 2
LCM(42578,42584) = 906570776

Least Common Multiple (LCM) of 42578 and 42584 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42578 and 42584. First we will calculate the prime factors of 42578 and 42584.

Prime Factorization of 42578

Prime Factorization of 42584

Now multiplying the highest exponent prime factors to calculate the LCM of 42578 and 42584.

LCM(42578,42584) = 2³ × 61¹ × 349¹ × 5323¹
LCM(42578,42584) = 906570776