What is the Least Common Multiple of 81000 and 81006?

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 81000 and 81006 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81000 and 81006, than apply into the LCM equation.

GCF(81000,81006) = 6
LCM(81000,81006) = ( 81000 × 81006) / 6
LCM(81000,81006) = 6561486000 / 6
LCM(81000,81006) = 1093581000

Least Common Multiple (LCM) of 81000 and 81006 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81000 and 81006. First we will calculate the prime factors of 81000 and 81006.

Prime Factorization of 81000

Prime Factorization of 81006

Now multiplying the highest exponent prime factors to calculate the LCM of 81000 and 81006.

LCM(81000,81006) = 2³ × 3⁴ × 5³ × 23¹ × 587¹
LCM(81000,81006) = 1093581000