What is the Least Common Multiple of 9489 and 9509?

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 9489 and 9509 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9489 and 9509, than apply into the LCM equation.

GCF(9489,9509) = 1
LCM(9489,9509) = ( 9489 × 9509) / 1
LCM(9489,9509) = 90230901 / 1
LCM(9489,9509) = 90230901

Least Common Multiple (LCM) of 9489 and 9509 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9489 and 9509. First we will calculate the prime factors of 9489 and 9509.

Prime Factorization of 9489

Prime Factorization of 9509

Now multiplying the highest exponent prime factors to calculate the LCM of 9489 and 9509.

LCM(9489,9509) = 3¹ × 3163¹ × 37¹ × 257¹
LCM(9489,9509) = 90230901