What is the Least Common Multiple of 81603 and 81607?

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 81603 and 81607 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81603 and 81607, than apply into the LCM equation.

GCF(81603,81607) = 1
LCM(81603,81607) = ( 81603 × 81607) / 1
LCM(81603,81607) = 6659376021 / 1
LCM(81603,81607) = 6659376021

Least Common Multiple (LCM) of 81603 and 81607 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81603 and 81607. First we will calculate the prime factors of 81603 and 81607.

Prime Factorization of 81603

Prime Factorization of 81607

Now multiplying the highest exponent prime factors to calculate the LCM of 81603 and 81607.

LCM(81603,81607) = 3² × 9067¹ × 79¹ × 1033¹
LCM(81603,81607) = 6659376021