What is the Least Common Multiple of 72040 and 72044?

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 72040 and 72044 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72040 and 72044, than apply into the LCM equation.

GCF(72040,72044) = 4
LCM(72040,72044) = ( 72040 × 72044) / 4
LCM(72040,72044) = 5190049760 / 4
LCM(72040,72044) = 1297512440

Least Common Multiple (LCM) of 72040 and 72044 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72040 and 72044. First we will calculate the prime factors of 72040 and 72044.

Prime Factorization of 72040

Prime Factorization of 72044

Now multiplying the highest exponent prime factors to calculate the LCM of 72040 and 72044.

LCM(72040,72044) = 2³ × 5¹ × 1801¹ × 7¹ × 31¹ × 83¹
LCM(72040,72044) = 1297512440