What is the Least Common Multiple of 25470 and 25478?

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 25470 and 25478 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25470 and 25478, than apply into the LCM equation.

GCF(25470,25478) = 2
LCM(25470,25478) = ( 25470 × 25478) / 2
LCM(25470,25478) = 648924660 / 2
LCM(25470,25478) = 324462330

Least Common Multiple (LCM) of 25470 and 25478 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25470 and 25478. First we will calculate the prime factors of 25470 and 25478.

Prime Factorization of 25470

Prime Factorization of 25478

Now multiplying the highest exponent prime factors to calculate the LCM of 25470 and 25478.

LCM(25470,25478) = 2¹ × 3² × 5¹ × 283¹ × 12739¹
LCM(25470,25478) = 324462330