What is the Least Common Multiple of 28865 and 28870?

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 28865 and 28870 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28865 and 28870, than apply into the LCM equation.

GCF(28865,28870) = 5
LCM(28865,28870) = ( 28865 × 28870) / 5
LCM(28865,28870) = 833332550 / 5
LCM(28865,28870) = 166666510

Least Common Multiple (LCM) of 28865 and 28870 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28865 and 28870. First we will calculate the prime factors of 28865 and 28870.

Prime Factorization of 28865

Prime Factorization of 28870

Now multiplying the highest exponent prime factors to calculate the LCM of 28865 and 28870.

LCM(28865,28870) = 5¹ × 23¹ × 251¹ × 2¹ × 2887¹
LCM(28865,28870) = 166666510