What is the Least Common Multiple of 42178 and 42192?

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 42178 and 42192 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42178 and 42192, than apply into the LCM equation.

GCF(42178,42192) = 2
LCM(42178,42192) = ( 42178 × 42192) / 2
LCM(42178,42192) = 1779574176 / 2
LCM(42178,42192) = 889787088

Least Common Multiple (LCM) of 42178 and 42192 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42178 and 42192. First we will calculate the prime factors of 42178 and 42192.

Prime Factorization of 42178

Prime Factorization of 42192

Now multiplying the highest exponent prime factors to calculate the LCM of 42178 and 42192.

LCM(42178,42192) = 2⁴ × 21089¹ × 3² × 293¹
LCM(42178,42192) = 889787088