What is the Least Common Multiple of 56409 and 56421?

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 56409 and 56421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56409 and 56421, than apply into the LCM equation.

GCF(56409,56421) = 3
LCM(56409,56421) = ( 56409 × 56421) / 3
LCM(56409,56421) = 3182652189 / 3
LCM(56409,56421) = 1060884063

Least Common Multiple (LCM) of 56409 and 56421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56409 and 56421. First we will calculate the prime factors of 56409 and 56421.

Prime Factorization of 56409

Prime Factorization of 56421

Now multiplying the highest exponent prime factors to calculate the LCM of 56409 and 56421.

LCM(56409,56421) = 3² × 18803¹ × 6269¹
LCM(56409,56421) = 1060884063