What is the Least Common Multiple of 28890 and 28910?

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 28890 and 28910 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28890 and 28910, than apply into the LCM equation.

GCF(28890,28910) = 10
LCM(28890,28910) = ( 28890 × 28910) / 10
LCM(28890,28910) = 835209900 / 10
LCM(28890,28910) = 83520990

Least Common Multiple (LCM) of 28890 and 28910 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28890 and 28910. First we will calculate the prime factors of 28890 and 28910.

Prime Factorization of 28890

Prime Factorization of 28910

Now multiplying the highest exponent prime factors to calculate the LCM of 28890 and 28910.

LCM(28890,28910) = 2¹ × 3³ × 5¹ × 107¹ × 7² × 59¹
LCM(28890,28910) = 83520990