What is the Least Common Multiple of 43740 and 43758?

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 43758 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 43758, than apply into the LCM equation.

GCF(43740,43758) = 18
LCM(43740,43758) = ( 43740 × 43758) / 18
LCM(43740,43758) = 1913974920 / 18
LCM(43740,43758) = 106331940

Least Common Multiple (LCM) of 43740 and 43758 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43740 and 43758. First we will calculate the prime factors of 43740 and 43758.

Prime Factorization of 43740

Prime Factorization of 43758

Now multiplying the highest exponent prime factors to calculate the LCM of 43740 and 43758.

LCM(43740,43758) = 2² × 3⁷ × 5¹ × 11¹ × 13¹ × 17¹
LCM(43740,43758) = 106331940