What is the Least Common Multiple of 81155 and 81175?

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 81155 and 81175 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81155 and 81175, than apply into the LCM equation.

GCF(81155,81175) = 5
LCM(81155,81175) = ( 81155 × 81175) / 5
LCM(81155,81175) = 6587757125 / 5
LCM(81155,81175) = 1317551425

Least Common Multiple (LCM) of 81155 and 81175 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81155 and 81175. First we will calculate the prime factors of 81155 and 81175.

Prime Factorization of 81155

Prime Factorization of 81175

Now multiplying the highest exponent prime factors to calculate the LCM of 81155 and 81175.

LCM(81155,81175) = 5² × 16231¹ × 17¹ × 191¹
LCM(81155,81175) = 1317551425