What is the Least Common Multiple of 72128 and 72143?

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 72128 and 72143 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72128 and 72143, than apply into the LCM equation.

GCF(72128,72143) = 1
LCM(72128,72143) = ( 72128 × 72143) / 1
LCM(72128,72143) = 5203530304 / 1
LCM(72128,72143) = 5203530304

Least Common Multiple (LCM) of 72128 and 72143 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72128 and 72143. First we will calculate the prime factors of 72128 and 72143.

Prime Factorization of 72128

Prime Factorization of 72143

Now multiplying the highest exponent prime factors to calculate the LCM of 72128 and 72143.

LCM(72128,72143) = 2⁶ × 7² × 23¹ × 19¹ × 3797¹
LCM(72128,72143) = 5203530304