What is the Least Common Multiple of 2305 and 2320?

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 2305 and 2320 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2305 and 2320, than apply into the LCM equation.

GCF(2305,2320) = 5
LCM(2305,2320) = ( 2305 × 2320) / 5
LCM(2305,2320) = 5347600 / 5
LCM(2305,2320) = 1069520

Least Common Multiple (LCM) of 2305 and 2320 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2305 and 2320. First we will calculate the prime factors of 2305 and 2320.

Prime Factorization of 2305

Prime Factorization of 2320

Now multiplying the highest exponent prime factors to calculate the LCM of 2305 and 2320.

LCM(2305,2320) = 5¹ × 461¹ × 2⁴ × 29¹
LCM(2305,2320) = 1069520