What is the Least Common Multiple of 42729 and 42747?

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 42729 and 42747 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42729 and 42747, than apply into the LCM equation.

GCF(42729,42747) = 3
LCM(42729,42747) = ( 42729 × 42747) / 3
LCM(42729,42747) = 1826536563 / 3
LCM(42729,42747) = 608845521

Least Common Multiple (LCM) of 42729 and 42747 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42729 and 42747. First we will calculate the prime factors of 42729 and 42747.

Prime Factorization of 42729

Prime Factorization of 42747

Now multiplying the highest exponent prime factors to calculate the LCM of 42729 and 42747.

LCM(42729,42747) = 3¹ × 14243¹ × 14249¹
LCM(42729,42747) = 608845521