What is the Least Common Multiple of 81370 and 81375?

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 81370 and 81375 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81370 and 81375, than apply into the LCM equation.

GCF(81370,81375) = 5
LCM(81370,81375) = ( 81370 × 81375) / 5
LCM(81370,81375) = 6621483750 / 5
LCM(81370,81375) = 1324296750

Least Common Multiple (LCM) of 81370 and 81375 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81370 and 81375. First we will calculate the prime factors of 81370 and 81375.

Prime Factorization of 81370

Prime Factorization of 81375

Now multiplying the highest exponent prime factors to calculate the LCM of 81370 and 81375.

LCM(81370,81375) = 2¹ × 5³ × 79¹ × 103¹ × 3¹ × 7¹ × 31¹
LCM(81370,81375) = 1324296750