What is the Least Common Multiple of 40128 and 40142?

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 40128 and 40142 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40128 and 40142, than apply into the LCM equation.

GCF(40128,40142) = 2
LCM(40128,40142) = ( 40128 × 40142) / 2
LCM(40128,40142) = 1610818176 / 2
LCM(40128,40142) = 805409088

Least Common Multiple (LCM) of 40128 and 40142 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40128 and 40142. First we will calculate the prime factors of 40128 and 40142.

Prime Factorization of 40128

Prime Factorization of 40142

Now multiplying the highest exponent prime factors to calculate the LCM of 40128 and 40142.

LCM(40128,40142) = 2⁶ × 3¹ × 11¹ × 19¹ × 20071¹
LCM(40128,40142) = 805409088