What is the Least Common Multiple of 43405 and 43415?

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 43405 and 43415 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43405 and 43415, than apply into the LCM equation.

GCF(43405,43415) = 5
LCM(43405,43415) = ( 43405 × 43415) / 5
LCM(43405,43415) = 1884428075 / 5
LCM(43405,43415) = 376885615

Least Common Multiple (LCM) of 43405 and 43415 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43405 and 43415. First we will calculate the prime factors of 43405 and 43415.

Prime Factorization of 43405

Prime Factorization of 43415

Now multiplying the highest exponent prime factors to calculate the LCM of 43405 and 43415.

LCM(43405,43415) = 5¹ × 8681¹ × 19¹ × 457¹
LCM(43405,43415) = 376885615