What is the Least Common Multiple of 18490 and 18508?

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 18490 and 18508 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18490 and 18508, than apply into the LCM equation.

GCF(18490,18508) = 2
LCM(18490,18508) = ( 18490 × 18508) / 2
LCM(18490,18508) = 342212920 / 2
LCM(18490,18508) = 171106460

Least Common Multiple (LCM) of 18490 and 18508 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18490 and 18508. First we will calculate the prime factors of 18490 and 18508.

Prime Factorization of 18490

Prime Factorization of 18508

Now multiplying the highest exponent prime factors to calculate the LCM of 18490 and 18508.

LCM(18490,18508) = 2² × 5¹ × 43² × 7¹ × 661¹
LCM(18490,18508) = 171106460