What is the Least Common Multiple of 18142 and 18158?

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 18142 and 18158 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18142 and 18158, than apply into the LCM equation.

GCF(18142,18158) = 2
LCM(18142,18158) = ( 18142 × 18158) / 2
LCM(18142,18158) = 329422436 / 2
LCM(18142,18158) = 164711218

Least Common Multiple (LCM) of 18142 and 18158 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18142 and 18158. First we will calculate the prime factors of 18142 and 18158.

Prime Factorization of 18142

Prime Factorization of 18158

Now multiplying the highest exponent prime factors to calculate the LCM of 18142 and 18158.

LCM(18142,18158) = 2¹ × 47¹ × 193¹ × 7¹ × 1297¹
LCM(18142,18158) = 164711218