What is the Least Common Multiple of 28455 and 28473?

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 28455 and 28473 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28455 and 28473, than apply into the LCM equation.

GCF(28455,28473) = 3
LCM(28455,28473) = ( 28455 × 28473) / 3
LCM(28455,28473) = 810199215 / 3
LCM(28455,28473) = 270066405

Least Common Multiple (LCM) of 28455 and 28473 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28455 and 28473. First we will calculate the prime factors of 28455 and 28473.

Prime Factorization of 28455

Prime Factorization of 28473

Now multiplying the highest exponent prime factors to calculate the LCM of 28455 and 28473.

LCM(28455,28473) = 3¹ × 5¹ × 7¹ × 271¹ × 9491¹
LCM(28455,28473) = 270066405