What is the Least Common Multiple of 30138 and 30142?

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 30138 and 30142 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30138 and 30142, than apply into the LCM equation.

GCF(30138,30142) = 2
LCM(30138,30142) = ( 30138 × 30142) / 2
LCM(30138,30142) = 908419596 / 2
LCM(30138,30142) = 454209798

Least Common Multiple (LCM) of 30138 and 30142 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30138 and 30142. First we will calculate the prime factors of 30138 and 30142.

Prime Factorization of 30138

Prime Factorization of 30142

Now multiplying the highest exponent prime factors to calculate the LCM of 30138 and 30142.

LCM(30138,30142) = 2¹ × 3¹ × 5023¹ × 7¹ × 2153¹
LCM(30138,30142) = 454209798