What is the Least Common Multiple of 81619 and 81631?

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 81619 and 81631 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81619 and 81631, than apply into the LCM equation.

GCF(81619,81631) = 1
LCM(81619,81631) = ( 81619 × 81631) / 1
LCM(81619,81631) = 6662640589 / 1
LCM(81619,81631) = 6662640589

Least Common Multiple (LCM) of 81619 and 81631 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81619 and 81631. First we will calculate the prime factors of 81619 and 81631.

Prime Factorization of 81619

Prime Factorization of 81631

Now multiplying the highest exponent prime factors to calculate the LCM of 81619 and 81631.

LCM(81619,81631) = 81619¹ × 11¹ × 41¹ × 181¹
LCM(81619,81631) = 6662640589