What is the Least Common Multiple of 17721 and 17730?

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 17721 and 17730 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17721 and 17730, than apply into the LCM equation.

GCF(17721,17730) = 9
LCM(17721,17730) = ( 17721 × 17730) / 9
LCM(17721,17730) = 314193330 / 9
LCM(17721,17730) = 34910370

Least Common Multiple (LCM) of 17721 and 17730 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17721 and 17730. First we will calculate the prime factors of 17721 and 17730.

Prime Factorization of 17721

Prime Factorization of 17730

Now multiplying the highest exponent prime factors to calculate the LCM of 17721 and 17730.

LCM(17721,17730) = 3² × 11¹ × 179¹ × 2¹ × 5¹ × 197¹
LCM(17721,17730) = 34910370