What is the Least Common Multiple of 3405 and 3424?

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 3405 and 3424 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3405 and 3424, than apply into the LCM equation.

GCF(3405,3424) = 1
LCM(3405,3424) = ( 3405 × 3424) / 1
LCM(3405,3424) = 11658720 / 1
LCM(3405,3424) = 11658720

Least Common Multiple (LCM) of 3405 and 3424 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3405 and 3424. First we will calculate the prime factors of 3405 and 3424.

Prime Factorization of 3405

Prime Factorization of 3424

Now multiplying the highest exponent prime factors to calculate the LCM of 3405 and 3424.

LCM(3405,3424) = 3¹ × 5¹ × 227¹ × 2⁵ × 107¹
LCM(3405,3424) = 11658720