What is the Least Common Multiple of 28455 and 28471?

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 28471 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 28471, than apply into the LCM equation.

GCF(28455,28471) = 1
LCM(28455,28471) = ( 28455 × 28471) / 1
LCM(28455,28471) = 810142305 / 1
LCM(28455,28471) = 810142305

Least Common Multiple (LCM) of 28455 and 28471 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28455 and 28471. First we will calculate the prime factors of 28455 and 28471.

Prime Factorization of 28455

Prime Factorization of 28471

Now multiplying the highest exponent prime factors to calculate the LCM of 28455 and 28471.

LCM(28455,28471) = 3¹ × 5¹ × 7¹ × 271¹ × 71¹ × 401¹
LCM(28455,28471) = 810142305