What is the Least Common Multiple of 19442 and 19458?

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 19442 and 19458 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19442 and 19458, than apply into the LCM equation.

GCF(19442,19458) = 2
LCM(19442,19458) = ( 19442 × 19458) / 2
LCM(19442,19458) = 378302436 / 2
LCM(19442,19458) = 189151218

Least Common Multiple (LCM) of 19442 and 19458 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19442 and 19458. First we will calculate the prime factors of 19442 and 19458.

Prime Factorization of 19442

Prime Factorization of 19458

Now multiplying the highest exponent prime factors to calculate the LCM of 19442 and 19458.

LCM(19442,19458) = 2¹ × 9721¹ × 3² × 23¹ × 47¹
LCM(19442,19458) = 189151218