What is the Least Common Multiple of 18028 and 18040?

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 18028 and 18040 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18028 and 18040, than apply into the LCM equation.

GCF(18028,18040) = 4
LCM(18028,18040) = ( 18028 × 18040) / 4
LCM(18028,18040) = 325225120 / 4
LCM(18028,18040) = 81306280

Least Common Multiple (LCM) of 18028 and 18040 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18028 and 18040. First we will calculate the prime factors of 18028 and 18040.

Prime Factorization of 18028

Prime Factorization of 18040

Now multiplying the highest exponent prime factors to calculate the LCM of 18028 and 18040.

LCM(18028,18040) = 2³ × 4507¹ × 5¹ × 11¹ × 41¹
LCM(18028,18040) = 81306280