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What is the Least Common Multiple of 2315 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 (LCM) of 2315 and 2320 is 1074160.

LCM(2315,2320) = 1074160

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Least Common Multiple of 2315 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 2315 and 2320, than apply into the LCM equation.

GCF(2315,2320) = 5
LCM(2315,2320) = ( 2315 × 2320) / 5
LCM(2315,2320) = 5370800 / 5
LCM(2315,2320) = 1074160

Least Common Multiple (LCM) of 2315 and 2320 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2315 and 2320. First we will calculate the prime factors of 2315 and 2320.

Prime Factorization of 2315

Prime factors of 2315 are 5, 463. Prime factorization of 2315 in exponential form is:

2315 = 51 × 4631

Prime Factorization of 2320

Prime factors of 2320 are 2, 5, 29. Prime factorization of 2320 in exponential form is:

2320 = 24 × 51 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 2315 and 2320.

LCM(2315,2320) = 51 × 4631 × 24 × 291
LCM(2315,2320) = 1074160