What is the Least Common Multiple of 43458 and 43478?

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 43458 and 43478 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43458 and 43478, than apply into the LCM equation.

GCF(43458,43478) = 2
LCM(43458,43478) = ( 43458 × 43478) / 2
LCM(43458,43478) = 1889466924 / 2
LCM(43458,43478) = 944733462

Least Common Multiple (LCM) of 43458 and 43478 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43458 and 43478. First we will calculate the prime factors of 43458 and 43478.

Prime Factorization of 43458

Prime Factorization of 43478

Now multiplying the highest exponent prime factors to calculate the LCM of 43458 and 43478.

LCM(43458,43478) = 2¹ × 3¹ × 7243¹ × 21739¹
LCM(43458,43478) = 944733462