What is the Least Common Multiple of 28956 and 28960?

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 28956 and 28960 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28956 and 28960, than apply into the LCM equation.

GCF(28956,28960) = 4
LCM(28956,28960) = ( 28956 × 28960) / 4
LCM(28956,28960) = 838565760 / 4
LCM(28956,28960) = 209641440

Least Common Multiple (LCM) of 28956 and 28960 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28956 and 28960. First we will calculate the prime factors of 28956 and 28960.

Prime Factorization of 28956

Prime Factorization of 28960

Now multiplying the highest exponent prime factors to calculate the LCM of 28956 and 28960.

LCM(28956,28960) = 2⁵ × 3¹ × 19¹ × 127¹ × 5¹ × 181¹
LCM(28956,28960) = 209641440