What is the Least Common Multiple of 2280 and 2290?

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 2280 and 2290 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2280 and 2290, than apply into the LCM equation.

GCF(2280,2290) = 10
LCM(2280,2290) = ( 2280 × 2290) / 10
LCM(2280,2290) = 5221200 / 10
LCM(2280,2290) = 522120

Least Common Multiple (LCM) of 2280 and 2290 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2280 and 2290. First we will calculate the prime factors of 2280 and 2290.

Prime Factorization of 2280

Prime Factorization of 2290

Now multiplying the highest exponent prime factors to calculate the LCM of 2280 and 2290.

LCM(2280,2290) = 2³ × 3¹ × 5¹ × 19¹ × 229¹
LCM(2280,2290) = 522120