What is the Least Common Multiple of 28443 and 28455?

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 28443 and 28455 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28443 and 28455, than apply into the LCM equation.

GCF(28443,28455) = 3
LCM(28443,28455) = ( 28443 × 28455) / 3
LCM(28443,28455) = 809345565 / 3
LCM(28443,28455) = 269781855

Least Common Multiple (LCM) of 28443 and 28455 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28443 and 28455. First we will calculate the prime factors of 28443 and 28455.

Prime Factorization of 28443

Prime Factorization of 28455

Now multiplying the highest exponent prime factors to calculate the LCM of 28443 and 28455.

LCM(28443,28455) = 3¹ × 19¹ × 499¹ × 5¹ × 7¹ × 271¹
LCM(28443,28455) = 269781855