What is the Least Common Multiple of 43740 and 43749?

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 43740 and 43749 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43740 and 43749, than apply into the LCM equation.

GCF(43740,43749) = 9
LCM(43740,43749) = ( 43740 × 43749) / 9
LCM(43740,43749) = 1913581260 / 9
LCM(43740,43749) = 212620140

Least Common Multiple (LCM) of 43740 and 43749 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43740 and 43749. First we will calculate the prime factors of 43740 and 43749.

Prime Factorization of 43740

Prime Factorization of 43749

Now multiplying the highest exponent prime factors to calculate the LCM of 43740 and 43749.

LCM(43740,43749) = 2² × 3⁷ × 5¹ × 4861¹
LCM(43740,43749) = 212620140