What is the Least Common Multiple of 22491 and 22509?

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 22491 and 22509 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 22491 and 22509, than apply into the LCM equation.

GCF(22491,22509) = 9
LCM(22491,22509) = ( 22491 × 22509) / 9
LCM(22491,22509) = 506249919 / 9
LCM(22491,22509) = 56249991

Least Common Multiple (LCM) of 22491 and 22509 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 22491 and 22509. First we will calculate the prime factors of 22491 and 22509.

Prime Factorization of 22491

Prime Factorization of 22509

Now multiplying the highest exponent prime factors to calculate the LCM of 22491 and 22509.

LCM(22491,22509) = 3³ × 7² × 17¹ × 41¹ × 61¹
LCM(22491,22509) = 56249991