What is the Least Common Multiple of 17730 and 17740?

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 17730 and 17740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17730 and 17740, than apply into the LCM equation.

GCF(17730,17740) = 10
LCM(17730,17740) = ( 17730 × 17740) / 10
LCM(17730,17740) = 314530200 / 10
LCM(17730,17740) = 31453020

Least Common Multiple (LCM) of 17730 and 17740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17730 and 17740. First we will calculate the prime factors of 17730 and 17740.

Prime Factorization of 17730

Prime Factorization of 17740

Now multiplying the highest exponent prime factors to calculate the LCM of 17730 and 17740.

LCM(17730,17740) = 2² × 3² × 5¹ × 197¹ × 887¹
LCM(17730,17740) = 31453020