What is the Least Common Multiple of 23409 and 23421?

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 23409 and 23421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23409 and 23421, than apply into the LCM equation.

GCF(23409,23421) = 3
LCM(23409,23421) = ( 23409 × 23421) / 3
LCM(23409,23421) = 548262189 / 3
LCM(23409,23421) = 182754063

Least Common Multiple (LCM) of 23409 and 23421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23409 and 23421. First we will calculate the prime factors of 23409 and 23421.

Prime Factorization of 23409

Prime Factorization of 23421

Now multiplying the highest exponent prime factors to calculate the LCM of 23409 and 23421.

LCM(23409,23421) = 3⁴ × 17² × 37¹ × 211¹
LCM(23409,23421) = 182754063