What is the Least Common Multiple of 19438 and 19455?

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 19438 and 19455 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19438 and 19455, than apply into the LCM equation.

GCF(19438,19455) = 1
LCM(19438,19455) = ( 19438 × 19455) / 1
LCM(19438,19455) = 378166290 / 1
LCM(19438,19455) = 378166290

Least Common Multiple (LCM) of 19438 and 19455 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19438 and 19455. First we will calculate the prime factors of 19438 and 19455.

Prime Factorization of 19438

Prime Factorization of 19455

Now multiplying the highest exponent prime factors to calculate the LCM of 19438 and 19455.

LCM(19438,19455) = 2¹ × 9719¹ × 3¹ × 5¹ × 1297¹
LCM(19438,19455) = 378166290