GCF and LCM Calculator Logo

What is the Least Common Multiple of 15630 and 15640?

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 (LCM) of 15630 and 15640 is 24445320.

LCM(15630,15640) = 24445320

LCM Calculator and
and

Least Common Multiple of 15630 and 15640 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15630 and 15640, than apply into the LCM equation.

GCF(15630,15640) = 10
LCM(15630,15640) = ( 15630 × 15640) / 10
LCM(15630,15640) = 244453200 / 10
LCM(15630,15640) = 24445320

Least Common Multiple (LCM) of 15630 and 15640 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15630 and 15640. First we will calculate the prime factors of 15630 and 15640.

Prime Factorization of 15630

Prime factors of 15630 are 2, 3, 5, 521. Prime factorization of 15630 in exponential form is:

15630 = 21 × 31 × 51 × 5211

Prime Factorization of 15640

Prime factors of 15640 are 2, 5, 17, 23. Prime factorization of 15640 in exponential form is:

15640 = 23 × 51 × 171 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 15630 and 15640.

LCM(15630,15640) = 23 × 31 × 51 × 5211 × 171 × 231
LCM(15630,15640) = 24445320