What is the Least Common Multiple of 18040 and 18046?

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 18040 and 18046 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18040 and 18046, than apply into the LCM equation.

GCF(18040,18046) = 2
LCM(18040,18046) = ( 18040 × 18046) / 2
LCM(18040,18046) = 325549840 / 2
LCM(18040,18046) = 162774920

Least Common Multiple (LCM) of 18040 and 18046 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18040 and 18046. First we will calculate the prime factors of 18040 and 18046.

Prime Factorization of 18040

Prime Factorization of 18046

Now multiplying the highest exponent prime factors to calculate the LCM of 18040 and 18046.

LCM(18040,18046) = 2³ × 5¹ × 11¹ × 41¹ × 7¹ × 1289¹
LCM(18040,18046) = 162774920