What is the Least Common Multiple of 25600 and 25605?

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 25600 and 25605 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25600 and 25605, than apply into the LCM equation.

GCF(25600,25605) = 5
LCM(25600,25605) = ( 25600 × 25605) / 5
LCM(25600,25605) = 655488000 / 5
LCM(25600,25605) = 131097600

Least Common Multiple (LCM) of 25600 and 25605 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25600 and 25605. First we will calculate the prime factors of 25600 and 25605.

Prime Factorization of 25600

Prime Factorization of 25605

Now multiplying the highest exponent prime factors to calculate the LCM of 25600 and 25605.

LCM(25600,25605) = 2¹⁰ × 5² × 3² × 569¹
LCM(25600,25605) = 131097600