What is the Least Common Multiple of 81436 and 81454?

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 81436 and 81454 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81436 and 81454, than apply into the LCM equation.

GCF(81436,81454) = 2
LCM(81436,81454) = ( 81436 × 81454) / 2
LCM(81436,81454) = 6633287944 / 2
LCM(81436,81454) = 3316643972

Least Common Multiple (LCM) of 81436 and 81454 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81436 and 81454. First we will calculate the prime factors of 81436 and 81454.

Prime Factorization of 81436

Prime Factorization of 81454

Now multiplying the highest exponent prime factors to calculate the LCM of 81436 and 81454.

LCM(81436,81454) = 2² × 20359¹ × 139¹ × 293¹
LCM(81436,81454) = 3316643972