What is the Least Common Multiple of 72161 and 72171?

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 72161 and 72171 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72161 and 72171, than apply into the LCM equation.

GCF(72161,72171) = 1
LCM(72161,72171) = ( 72161 × 72171) / 1
LCM(72161,72171) = 5207931531 / 1
LCM(72161,72171) = 5207931531

Least Common Multiple (LCM) of 72161 and 72171 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72161 and 72171. First we will calculate the prime factors of 72161 and 72171.

Prime Factorization of 72161

Prime Factorization of 72171

Now multiplying the highest exponent prime factors to calculate the LCM of 72161 and 72171.

LCM(72161,72171) = 72161¹ × 3⁸ × 11¹
LCM(72161,72171) = 5207931531