What is the Least Common Multiple of 18158 and 18172?

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 18158 and 18172 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18158 and 18172, than apply into the LCM equation.

GCF(18158,18172) = 14
LCM(18158,18172) = ( 18158 × 18172) / 14
LCM(18158,18172) = 329967176 / 14
LCM(18158,18172) = 23569084

Least Common Multiple (LCM) of 18158 and 18172 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18158 and 18172. First we will calculate the prime factors of 18158 and 18172.

Prime Factorization of 18158

Prime Factorization of 18172

Now multiplying the highest exponent prime factors to calculate the LCM of 18158 and 18172.

LCM(18158,18172) = 2² × 7¹ × 1297¹ × 11¹ × 59¹
LCM(18158,18172) = 23569084