What is the Least Common Multiple of 23458 and 23478?

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 23458 and 23478 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23458 and 23478, than apply into the LCM equation.

GCF(23458,23478) = 2
LCM(23458,23478) = ( 23458 × 23478) / 2
LCM(23458,23478) = 550746924 / 2
LCM(23458,23478) = 275373462

Least Common Multiple (LCM) of 23458 and 23478 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23458 and 23478. First we will calculate the prime factors of 23458 and 23478.

Prime Factorization of 23458

Prime Factorization of 23478

Now multiplying the highest exponent prime factors to calculate the LCM of 23458 and 23478.

LCM(23458,23478) = 2¹ × 37¹ × 317¹ × 3¹ × 7¹ × 13¹ × 43¹
LCM(23458,23478) = 275373462