What is the Least Common Multiple of 15440 and 15445?

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 15440 and 15445 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15440 and 15445, than apply into the LCM equation.

GCF(15440,15445) = 5
LCM(15440,15445) = ( 15440 × 15445) / 5
LCM(15440,15445) = 238470800 / 5
LCM(15440,15445) = 47694160

Least Common Multiple (LCM) of 15440 and 15445 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15440 and 15445. First we will calculate the prime factors of 15440 and 15445.

Prime Factorization of 15440

Prime Factorization of 15445

Now multiplying the highest exponent prime factors to calculate the LCM of 15440 and 15445.

LCM(15440,15445) = 2⁴ × 5¹ × 193¹ × 3089¹
LCM(15440,15445) = 47694160